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

A tank has two inlets : P and Q. P alone takes 6 hours and Q alone takes 8 hours to fill the empty tank completely when there is no leakage. A leakage was caused which would empty the full tank completely in ‘X’ hours when no inlet is opened. Now, when only inlet P was opened, it took 15 hours to fill the empty tank completely. How much time will Q alone take to fill the empty tank completely ? (in hours)