A man buys an old motorcycle for 7800 and spends 1300 on its repair. If he sells the motorcycle at 14000, what is his gain percentage?

A park 60 m * 40 m has two roads running in the middle of park and rest has been used as lawn. If total area of lawn is 2109 sq m, what is the width of the road?

The average of 20 numbers is zero. How many of them can be greater than zero? (at max.)

If today is Monday, what will be the day of week after 67 days?

X took 2 hours more than Y to cover 30 km. If X doubles his speed, then he would take 1 hour less than Y. X's speed is

A man, whose present age is 48 years, had the same age as his son's today, at the time of his birth. What was the age of his son 6 years back?

The time taken to row a same distance against the stream is triple than in the favour of the stream. Find the ratio of the speed of the stream to the speed of boat in still water.

X completes 40% of his work in 12 days. Then takes the help of Y and Z. Y is 50% efficient as X, Z is 50% efficient as Y. In how many more days will they complete the work?

A train running at the speed of 10 metres per second crosses a pole on a platform in 10 seconds and the platform in 20 seconds. What is the length of the platform?

Rahul can do a piece of work in 15 days and Rishabh can do the same work in 10 days. If they work on it together for 5 days, then what fraction of work is left?

A starts walking 40 m in north, then 50 m in east then 70 m in south, then 10 m in west. How far is he from the starting point?

The usual speed of a man is X. By walking at a speed 4/5^th of X, the man reaches his office 10 minutes late. What is the usual time taken to reach the office if he walks with speed X?

A cube of edge 16 m is melted and recast into identical cubes, each of edge 4 m. What is the percentage increase in the surface area?

Find the odd one out.

5, 15, 35, 65, 129, 160

A box contains 5 red and 3 green balls, and another box contains 4 white and 5 black balls. A single draw of two balls is made from any one of the boxes. Find the probability of getting a white ball and a black ball.