Sandeep buys an old scooter for Rs.4700 and spends Rs.800 on its repairs. If he sells to its Rajesh for Rs.5800, then his gain percent will be:

The coordinates of the incentre of the triangle whose sides are 3x – 4y = 0, 5x + 12y = 0 and y – 15 = 0, are

Three pipes A, B and C can fill a cistern in 10 hours, 12 hours and 15 hours respectively. First A was opened. After 2 hour, B was opened and after 4 hours from the start of A, C was also opened. Find the time in which the cistern is just full.

Direction : What value should come in place question mark(?) in the following questions?

25 % of 420 - ? % of 140=77

If $$ sin θ ={20 \over 29}$$, then what is the value of sec θ sin θ?

Direction (66-70): What should come in place of the question mark(?) in the following number series?

7, 8 , 17, 42, ?

The least number to be subtracted from 36798 to get a number which is exactly divisible by 78 is