Question

a group of man decided to do a job in 4 days.but since 20 men droppedout every day, the job completef at the end of the 7th day. How many men were there at the beginning?

Answer 1

let the no of men be x
according to question
4x=x-20+

Answer 2

sorry I don't know how to find this sum plz u give me this question solution