instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: by investing in 1623 % stock at 64 , one earns rs . 1500 . the investment made is
answer:
rs . 5760

question:
Problem: a jar contains a mixture of ab in the ratio 4 : 1 . when 40 l of mixture is replaced with liquid b , ratio becomes 2 : 3 . how many liters of liquid a was present in mixture initially .
answer:
64

question:
Problem: a train 110 m long is running with a speed of 36 km / hr . in what time will it pass a man who is running at 6 km / hr in the direction opposite to that in which the train is going ?
answer:
9