Question

Pek kaam 60 days main kar sakte h wa 15 din kaam karta h aur bacha hua kaam q akele 30 dino mein pura karta hai dono milkarwa kaam kitne samye main pura kar sakte h

Answer 1

in one day p does=1/60 of the work in 15 days=1/60*15=1/4 of the work rest work=1-1/4=3/4 of the work a/q q does rest work in 30 days in 1 day=3/(4*30)=1/40of the work in 1 day both p and q can do=1/60+1/40=5/120=1/25. so,together both can do in 25 days.