You can Score 180+ in 20 Days - #iitjee #motivation

If 20 persons can clean 20 floors in 20 days, then in how many days can 16 persons clean 16 floors?

Motive can be

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A is twice as fast as B and together they can complete a work in 20 days. In how many days can A alone complete the work?

A can do a work in 20 days and B can do it in 14 days. If they work together for 7 days, then the fraction of the work left is:

A can do a work in 15 days and B in 20 days. If they together work on it for 4 days, then the fraction of the work that is left is :