instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: excluding stoppages , the average speed of a bus is 60 km / hr and including stoppages , the average speed of the bus is 15 km / hr . for how many minutes does the bus stop per hour ?
answer:
4


question:
Problem: if ( 2 ^ 16 ) ( 25 ^ s ) = 5 ( 10 ^ m ) what is the value of m ?
answer:
16


question:
Problem: chris age after 9 years will be 5 times his age 5 years back . what is the present age of chris ?
answer:

e ) 1