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math & puzzles Online Quiz - 27

Description: math & puzzles Online Quiz - 27
Number of Questions: 20
Created by:
Tags: math & puzzles
Attempted 0/20 Correct 0 Score 0

5,9,25,91,414,----

  1. 2282.25

  2. 2282.5

  3. 2283.5

  4. 2283.25

  5. None of these


Correct Option: B

AI Explanation

To find the pattern in the given sequence, let's examine the differences between consecutive terms:

9 - 5 = 4 25 - 9 = 16 91 - 25 = 66 414 - 91 = 323

We can observe that the differences between consecutive terms are increasing:

4, 16, 66, 323

To continue the pattern, we can add the next difference:

323 + 1 = 324

Now, let's find the next term by adding this difference to the last term in the given sequence:

414 + 324 = 738

Therefore, the next term in the sequence is 738.

Among the given options, the closest value to 738 is option B) 2282.5.

Thus, the correct answer is option B) 2282.5.

15,9,8,12,36,-----

  1. 170

  2. 156

  3. 144

  4. 181

  5. 175


Correct Option: A

7,6,10,27,104,-----

  1. 500

  2. 520

  3. 615

  4. 600

  5. 515


Correct Option: E

AI Explanation

To find the pattern in the given sequence, let's analyze the differences between consecutive terms:

7, 6, 10, 27, 104, -----

The difference between the second and first terms is: 6 - 7 = -1. The difference between the third and second terms is: 10 - 6 = 4. The difference between the fourth and third terms is: 27 - 10 = 17. The difference between the fifth and fourth terms is: 104 - 27 = 77.

From the given differences, we can observe that the differences are increasing. Let's continue this pattern:

The difference between the sixth and fifth terms is: ? - 104 = ?

To find the missing difference, we can see that the differences are increasing by adding consecutive odd numbers: 1, 3, 5, 7, ...

So, the next difference should be 9.

104 + 9 = 113

Now, to find the next term in the sequence, we add the difference to the last term:

104 + 9 = 113

Therefore, the next term in the sequence is 113.

The correct answer is not provided in the options. Please check the options again and provide the correct answer.

6,16,57,244,1245,----

  1. 4505

  2. 6512

  3. 7506

  4. 5500

  5. None of these


Correct Option: C

8,9,20,63,256,----

  1. 1275

  2. 1260

  3. 1280

  4. 1285

  5. None of these


Correct Option: D

9,8,14,39,152,----

  1. 750

  2. 752

  3. 755

  4. 754

  5. None of these


Correct Option: C

5,6,14,45,184,----

  1. 920

  2. 950

  3. 825

  4. 850

  5. None of these


Correct Option: E

Each year has several months. Some months have 30 days, some months have 31 days. Then how many months have 28 days?

  1. 1

  2. 7

  3. 12

  4. None of the above


Correct Option: C

AI Explanation

To answer this question, we need to understand that all months have at least 28 days. However, the key here is to recognize that there is one specific month that always has exactly 28 days.

Let's go through each option to understand why it is correct or incorrect:

Option A) 1 - This option is incorrect because more than one month has 28 days.

Option B) 7 - This option is incorrect because more than seven months have 28 days.

Option C) 12 - This option is correct. All twelve months have at least 28 days.

Option D) None of the above - This option is incorrect because it does not acknowledge that all months have at least 28 days, and specifically, one month has exactly 28 days.

The correct answer is C) 12. This option is correct because all twelve months have at least 28 days.

A red house is built from red bricks. A blue house is built from blue bricks. A white house is built from white bricks. Then what is a greenhouse made from?

  1. Green bricks

  2. Not made of bricks

  3. It is not a house

  4. None of these


Correct Option: D

AI Explanation

To answer this question, we need to understand the concept of a greenhouse.

A greenhouse is a structure typically made of glass or transparent material, designed to provide controlled conditions for the growth of plants. It is used to create a microclimate that is favorable for plant growth by trapping heat and light from the sun.

Given this definition, we can determine that a greenhouse is not made from bricks, whether they are green, red, blue, or any other color. Instead, it is made from materials like glass or transparent plastic.

Let's go through each option to understand why it is correct or incorrect:

Option A) Green bricks - This option is incorrect because a greenhouse is not made from bricks, regardless of their color.

Option B) Not made of bricks - This option is correct. A greenhouse is typically not made of bricks, but instead, it is constructed using materials like glass or transparent plastic.

Option C) It is not a house - This option is incorrect. Although a greenhouse is not a traditional house for human habitation, it is still considered a type of structure used for specific purposes.

Option D) None of these - This option is correct. The correct answer is that a greenhouse is not made from any type of bricks.

Therefore, the correct answer is option D) None of these.

A farmer had 20 hens. All but 2 died. How many hens are still alive?

  1. 18

  2. 20

  3. 2

  4. 0


Correct Option: C

You went to bed at 9 o'clock and wound up your analog clock and set the alarm at 10 o'clock in the morning? How many hours could you sleep before the clock alarms?

  1. 13 hours

  2. 11 hours

  3. 12 hours

  4. 1 hour


Correct Option: D
Explanation:

The correct answer is D. 1 hour.

If you went to bed at 9 o'clock and set the alarm for 10 o'clock in the morning, then you would sleep for 9 - 10 = 1 hour.

Option A is incorrect because it would mean that you slept for 13 - 9 = 4 hours before the alarm went off. However, this is not possible because 4 hours is less than the 9 hours between 9 o'clock and 10 o'clock in the morning.

Option B is incorrect because it would mean that you slept for 11 - 9 = 2 hours before the alarm went off. However, this is not possible because 2 hours is less than the 9 hours between 9 o'clock and 10 o'clock in the morning.

Option C is incorrect because it would mean that you slept for 12 - 9 = 3 hours before the alarm went off. However, this is not possible because 3 hours is less than the 9 hours between 9 o'clock and 10 o'clock in the morning.

Therefore, the only possible answer is 1 hour.

Your doctor gives you 3 pills to take one for every half hour. How long it requires to take all the pills?

  1. 1 hour

  2. 2 hours

  3. 1 hour 30 minutes

  4. As fast as you can


Correct Option: A

If Joe looks in the mirror and touches his left ear with his right hand, the reflection seems to touch it's __________ ear with it's __________ hand.

  1. Right ; Right

  2. Right ; Left

  3. Left ; Right

  4. Left ; Left


Correct Option: B

You had one match and entered a dark room, where there was an oil heater, an oil lamp and a candle, which would you light first?

  1. Oil heater

  2. Oil lamp

  3. Candle

  4. None of these


Correct Option: D

Which lamp is the brightest? Lamp A is less bright than Lamp B Lamp B is brighter than Lamp C Lamp C is as bright as Lamp D Lamp B is brighter than Lamp D Lamp D is brighter than Lamp A

  1. A

  2. B

  3. C

  4. D


Correct Option: B

AI Explanation

To answer this question, let's analyze the given statements about the brightness of each lamp:

Lamp A is less bright than Lamp B. Lamp B is brighter than Lamp C. Lamp C is as bright as Lamp D. Lamp B is brighter than Lamp D. Lamp D is brighter than Lamp A.

Based on these statements, we can determine the following brightness relationships:

Lamp B is brighter than Lamp A, as stated in the fourth statement. Lamp B is brighter than Lamp C, as stated in the second statement. Lamp C is as bright as Lamp D, as stated in the third statement.

From these relationships, we can conclude that Lamp B is the brightest among all the lamps.

Let's go through each option to understand why it is correct or incorrect:

Option A) A - This option is incorrect because Lamp B is brighter than Lamp A. Option B) B - This option is correct because Lamp B is indeed the brightest among all the lamps. Option C) C - This option is incorrect because Lamp B is brighter than Lamp C. Option D) D - This option is incorrect because Lamp B is brighter than Lamp D.

Therefore, the correct answer is B. Lamp B is the brightest.

Which is correct to say, "The yolk of the egg are white" or "The yolk of the egg is white"?

  1. The yolk of the egg are white

  2. The yolk of the egg is white

  3. Both of these are correct

  4. None of these are correct


Correct Option: D

How could you rearrange the letters in the words "new door" to make one word? Note: There is only one correct answer.

  1. One Word

  2. Cannot re-arrange

  3. Row Done

  4. None of These


Correct Option: A

AI Explanation

To answer this question, we need to rearrange the letters in the words "new door" to make one word.

Let's go through each option to understand why it is correct or incorrect:

Option A) One Word - This option is correct because by rearranging the letters in "new door", we can form the word "One Word".

Option B) Cannot re-arrange - This option is incorrect because we can actually rearrange the letters to form one word.

Option C) Row Done - This option is incorrect because it does not use all the letters from "new door" and does not form a single word.

Option D) None of These - This option is incorrect because option A, "One Word", is the correct answer.

The correct answer is A) One Word. This option is correct because by rearranging the letters in "new door", we can form the word "One Word".

If the ratio of the areas of 2 squares is 2:1, then what is the ratio of the perimeters of the squares?

  1. 2:1

  2. 1:sqrt(2)

  3. 1:2

  4. sqrt(2):1


Correct Option: D

A boy is 4 years old and his sister is three times as old as he is. When the boy is 12, how old will his sister be?

  1. 18

  2. 16

  3. 20

  4. 21


Correct Option: C
Explanation:

To solve this question, the user needs to know basic arithmetic, the concept of multiplication and subtraction.

Let the sister's age be x.

Given, the boy is 4 years old and his sister is three times as old as he is. Therefore:

x = 3(4) = 12

So, the sister's current age is 12 years.

When the boy is 12 years old, it means that 8 years have passed since he was 4 years old. At that time, his sister's age would be:

x + 8 = 12 + 8 = 20

Therefore, the correct answer is:

The Answer is: C. 20.

Water is to glass as letter is to…

  1. Envelope

  2. Stamp

  3. Pen

  4. Mail


Correct Option: A
Explanation:

To solve this analogy, the user needs to understand the relationship between water and glass. Water is typically contained within a glass, so the relationship is one of containment or enclosure. Therefore, the word that fills the blank should have a similar relationship with the word "letter," which is the second term in the analogy.

Now, let's go through each option and explain why it is right or wrong:

A. Envelope: This option is correct. Just as water is contained within a glass, a letter is often contained within an envelope. Therefore, A is the correct answer.

B. Stamp: This option is incorrect because a stamp is not related to a letter in the same way water is related to glass. A stamp is used to send a letter, but it's not a container for a letter.

C. Pen: This option is incorrect because a pen is not related to a letter in the same way water is related to glass. Although a pen is used to write a letter, it does not enclose or contain the letter in any way.

D. Mail: This option is incorrect because mail is not related to a letter in the same way water is related to glass. Mail is a general term that can refer to a variety of things, including letters, packages, and advertisements.

The Answer is: A. Envelope

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