9⁶-11 when divided by 8 would leave a remainder of :

The number will be, whose square is equal to the difference between the squares of 975 and 585, is:

A wholesaler purchased 7 hair clips for a rupee. How many for a rupee must he sell to get profit of 40%?

If the angle of elevation of the Sun changes from 30 ° to 45 °, the length of the shadow of a pillar decreases by 20 meters. The height of the pillar is 

Rahul plans to buy a scooter for his sister for which he saves Rs. 15625 at the start of every year for 3 year. If the rate of CI is 4% pa. then amount at which he plans to buy the scooter is (in Rs.)

If tan A=n tan B and Sin A= m Sin B, then the value of Cos²A is

O is the incentre of ∆ABC and ∠A = 30° then ∠BOC is

P can do a task in 30 days, Q is 50% more efficient than P, R can do the same work in 10 days less than Q if R and Q start task together and after X days they left the task and P completed the remaining task in (X + 8) days. then find the value of X?