Rakesh invests Rs. 8000 at some rate of interest. Being simple interest the  money doubles in 5 years. Raj sees this and invests Rs. 6250 for 3 years at the same rate of interest. How much interest does Raj get?

When a discount of 20% is given on a pizza, the profit is 32%. If the discount is 18%, then the profit is: 

Sanjay sold an article by giving a discount of 8 % for Rs. 17940. And make a profit of 19.6 %. If he did not give discount then how profit percentage he get? 

The ratio of the number of hens to the number of goats on farm A is 5: 4 and that on farm B is 5 : 7. What could be the ratio of the total number of hens to the total number of goats in farms A and B taken together?

Two trains of length 120 m and 90 m respectively with the same speed pass a static pole in 8 seconds and 6 seconds respectively. In what time they will cross each other if they are moving in opposite directions?

Ankur borrowed sum money from Megha at 8 % P.a simple interest and twice the amount from Harshita at 9 % P.a simple interest. He then added some more money of his own and lent the entire amount to Shalini at 10 % p.a simple interest. At the end of the year Ankur gained 14,000. If Ankur lend ₹ 40,000 to Shalini, then how much did Ankur borrow from Megha ?