Question

please solve this question guys ​

Answer 1

Answer:

Thanks for pts

atep by step

photo if dirty

Answer 2

Let the total units of work be LCM(10,15)=3

A does 30/10 = 3 units per day work

B does 30/15 = 2 units per day work

Together they do (3+2)=5 units of per day work.

Let say both of them worked for x days.

Work done by them in x days = 5x

Remaining work = 30–5x

This remaining work done by A alone in 5 days

Hence,

5*(A's work per day)= 30–5x

5*3=30–5x

x=3

A & B worked for 3 days.