instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: jack and jill are marathon runners . jack can finish a marathon ( 42 km ) in 7 hours and jill can run a marathon in 4.2 hours . what is the ratio of their average running speed ? ( jack : jill )
answer:
5 / 5

question:
Problem: two tains of equal lengths take 10 seconds and 15 seconds respectively to cross a telegraph post . if the length of each train be 120 metres , in what time ( in seconds ) will they cross each other travelling in opposite direction ?
answer:
12

question:
Problem: 5 men are equal to as many women as are equal to 8 boys . all of them earn rs . 120 only . men a ™️ s wages are ?
answer:
8 r