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math & puzzles Online Quiz - 51

Description: math & puzzles Online Quiz - 51
Number of Questions: 20
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Tags: math & puzzles
Attempted 0/20 Correct 0 Score 0

The longest distance in a cube is root 3 times its side.

  1. True

  2. False


Correct Option: A

Two angles are complementary if they sum of 90 degrees.

  1. True

  2. False


Correct Option: A

when heat increases volume ......decreases density

  1. True

  2. False


Correct Option: A

when the density increases.....then volume must have decreased

  1. True

  2. False


Correct Option: A

The sum of all 2 digit numbers which can be formed from 4 & 5 ?

  1. 45

  2. 99

  3. 100

  4. 54


Correct Option: B

B buys an item for Rs. 600 of which 12% is excise and 4% is sales tax . How much would B pay exclusive of taxes and excise?

  1. 519.82

  2. 521.33

  3. 517.24

  4. 518.00


Correct Option: C

A sum of Rs. 8.25 is made up of 100 coins which are either 10 paise or 5 paise. How many are there of 10 paise?

  1. 65

  2. 55

  3. 75

  4. 60


Correct Option: A

The difference of 2 positive numbers is 80 and quotient obtained on dividing the one by the other is 9. Find the first number.

  1. 75

  2. 90

  3. 10

  4. 80


Correct Option: B

P,Q, R enter a partnership where they invest Rs. 20000, Rs. 30000, Rs. 40000 resp. P withdraws Rs. 10000 after 2 months, Q withdraws Rs. 15000 after 4 months and R withdraws Rs. 25000 after 8 months. What will be R’s share in the profit of Rs. 12474?

  1. 3564

  2. 3267

  3. 5643

  4. 5500


Correct Option: C

The day before two days after the day before tomorrow is saturday.what day is it today?

  1. sunday

  2. friday

  3. saturday

  4. Thursday


Correct Option: B

YOU ARE A PARTICIPANT IN A RACE. YOU OVERTAKE THE SECOND PERSON. WHAT POSITION ARE YOU IN?

  1. Easy! I'll be first

  2. Last

  3. second

  4. Second from last


Correct Option: C

IF YOU OVERTAKE THE LAST PERSON, THEN YOU ARE....?

  1. Last

  2. Second from last

  3. None of these

  4. Third from last


Correct Option: C

One brick is one kilogram and half a brick heavy. What is the weight of one brick?

  1. 1 kilogram

  2. 1.5 kilogram

  3. 2 kilogram

  4. 0.75 kilogram


Correct Option: C

Two trains, 200 km apart, are moving toward each other at the speed of 50 km/hour each. A fly takes off from one train flying straight toward the other at the speed of 75 km/hour. Having reached the other train, the fly bounces off it and flies back to the first train. The fly repeats the trip until the trains collide and the bug is squashed. What distance has the fly traveled until its death?

  1. 150 KM

  2. 175 KM

  3. 125 KM

  4. 137 KM


Correct Option: A

If I went halfway to a town 60 km away at the speed of 30 km/hour, how fast do I have to go the rest of the way to have an average speed of 60 km/hour over the entire trip?

  1. 90 km/hr

  2. 30 km/hr

  3. 75 km/hr

  4. None of these


Correct Option: D

AI Explanation

To find the speed you need to travel for the rest of the way in order to have an average speed of 60 km/h over the entire trip, we can use the formula:

Average Speed = Total Distance / Total Time

Let's calculate the total time for the trip:

The distance to the town is 60 km, and you traveled halfway at a speed of 30 km/h. So the time taken for the first half of the trip is:

Time taken for the first half = Distance / Speed = 60 km / 30 km/hr = 2 hours

Now, we can calculate the total time for the entire trip:

Total Time = Time taken for the first half + Time taken for the second half

Since you traveled halfway to the town at a speed of 30 km/hr, the remaining distance is also 60 km.

So, for the second half of the trip, we have:

Time taken for the second half = Distance / Speed

To obtain an average speed of 60 km/hr over the entire trip, we can set up the equation:

60 km/hr = (60 km + 60 km) / (2 hours + Time taken for the second half)

Simplifying this equation, we get:

60 km/hr = 120 km / (2 + Time taken for the second half)

Cross-multiplying, we have:

60 km/hr * (2 + Time taken for the second half) = 120 km

Simplifying further, we get:

120 + 60 * Time taken for the second half = 120 km

60 * Time taken for the second half = 0 km

From this equation, we can see that the time taken for the second half of the trip is 0 hours. This means that the remaining distance of 60 km cannot be covered in any amount of time. Therefore, it is not possible to have an average speed of 60 km/hr over the entire trip.

Hence, the correct answer is D) None of these.

Diophantus's youth lasted 1/6 of his life. He had his first beard in the next 1/12 of his life. At the end of the following 1/7 of his life Diophantus got married. Five years from then his son was born. His son lived exactly 1/2 of Diophantus's life. Diophantus died 4 years after the death of his son. How long did Diophantus live?

  1. 75

  2. 76

  3. 80

  4. 84


Correct Option: D

If it were two hours later, it would be half as long until midnight as it would be if it were an hour later. What time is it now?

  1. 9 PM

  2. 9:30 PM

  3. 9:20 PM

  4. none of these


Correct Option: A
Explanation:

To solve this question, the user needs to use algebraic equations and time concepts. We can start by setting up the equation:

Let x be the number of hours until midnight from the current time. Then, we can create the equation:

(x - 2) = 1/2(x - 1)

Now, we can solve for x to determine the number of hours until midnight from the current time.

x - 2 = 1/2x - 1/2

Multiplying each side of the equation by 2 to eliminate the fraction yields:

2x - 4 = x - 1

Simplifying the equation by combining like terms gives:

x = 3

Therefore, there are 3 hours until midnight from the current time. If we subtract 3 hours from midnight, we get 9 PM. Thus, the correct answer is:

The Answer is: A. 9 PM

A swimming pool has four faucets. The first can fill the entire pool with water in two days, the second – in three days, the third – in four days, and the last one can fill the pool in 6 hours. How long will it take(approximately) to fill the pool using all 4 faucets together?

  1. 5 hr 15 min

  2. 6 hr

  3. 4 hr 43 min

  4. 3 hr


Correct Option: C

Identify the Bank Logo

  1. Karnataka Bank

  2. Syndicate Bank

  3. South Indian Bank

  4. Catholic Syrian Bank


Correct Option: B

Identify the Bank Logo

  1. UTI Bank

  2. Catholic Syrian Bank

  3. UCO Bank

  4. Bank of Bikaner


Correct Option: C
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