Question

Q23. If 18 binders bind 900 books in 10 days, then how many binders will be required to bind 660 books in 12 days.

Answer 1

11 blinders will be the answer

Answer 2

Given: 18 binders bind 900 books in 10 days.

To find: Number of binders that will be required to bind 660 books in 12 days.

Formula : $W_1M_2D_2=W_2M_1D_1$

, where W = Work, M = Number of men,  D= Days .

Put

$W_1=900\ , M_1=18\ , D_1=10\\ W_2=660\ , D_2=12$

we will find $M_2$

$(900)\times M_2\times (12)=(660)\times(18)\times(10)\\\\\Rightarrow\ M_2=\dfrac{(660)\times(18)\times(10)}{(900)\times12}=11$

Hence, 11 binders that will be required to bind 660 books in 12 days.