The task is to generate the correct answer for a given math problem.

Q: Problem: an aeroplane covers a certain distance of 670 kmph in 6 hours . to cover the same distance in 6 1 / 4 hours , it must travel at a speed of

A: 643
****
Q: Problem: what is the sum of the multiples of 4 between 63 and 151 inclusive ?

A: 233
****
Q: Problem: arjun started a business with rs . 10,000 and is joined afterwards by anoop with rs . 40 , 000 . after how many months did anoop join if the profits at the end of the year are divided equally ?

A:

****