A  bag contains 5 red balls, 7 yellow balls and 3 pink balls. If the two balls are drawn at random from the bag, one after another, what is the probability that the first ball is red and the second ball is yellow

The sum invested in Scheme B is twice the sum invested in Scheme A. Investment in Scheme A is made for 3 years at 8% p.a. simple interest and in Scheme B for 2 years at 9% p.a. simple interest. The total interest earned from both the schemes is INR 1800/-. How much was invested in Scheme A

Statements : Some problems are solutions. No solution is a trick. All rules are tricks.

Conclusions : I. No rule is a solution.

                    II. Some problems are definitely not tricks. 

Kim and Om are travelling from point A to B, which are 400 km apart. Travelling at a certain speed Kim takes one hour more than Om to reach point B. If Kim doubles her speed she will take 1 hour 30 min less than Om to reach point B. At what speed was Om driving from Point A to B

The sum invested in Scheme B is thrice the sum invested in Scheme A. Investment in Scheme A. Investment in Scheme A is made for 4 years at 8% p.a. simple interest and in Scheme B for 2 years at 13% p.a. simple interest and in Scheme B for 2 years at 13% p.a. simple interest. The total interest earned from both the schemes is INR 1320/-. How much was invested in Scheme A

At present, the respective ratio between the ages of A and B is 3:8 and that between A and C is 1 : 4. 3 years ago, the sum of ages of A, B and C will be 83 years. What is the present age of C