Question

If $16$ workers can do a work in $20$ hours then how many workers can do the work in $10$ hours?

• A. $8$
• B. $16$
• C. $32$
• D. $24$

Answer 1

Answer: (C)

$32$

This question is based on Inverse proprtion

According to the given conditions,

No. of workers Time taken

$16$ $20$ hours

$x$ $10$ hours

By inversion proportion,

$16\times 20=x\times 10$

$\therefore x=\frac{16\times 20}{10}$

$\therefore x=32$

Answer is $32$ workers