Question

11. 8 persons can finish a work in 5 days.
10 persons can finish the work in
days.
A) 2
B) 3
C) 4
D) 5
​

Answer 1

$\large\mathfrak \pink{Solution:-}$

$\underline \mathbb{TO \: FIND:-}$

How many days required for 10 persons to finish the work.

$\underline \mathbb{BY \: THE \: PROBLEM:-}$

$8\: persons \: can \: finish \: the \: work \: in \: 5 \: days \\ \\ \implies \: 1\: person \: can \: finish \: the \: work \: in \: 5 \times 8 \: days \\ \\ \implies \: 10\: persons \: can \: finish \: the \: work \: in \: \frac{5 \times 8}{10} \: days = 4 \: days$

$\underline \mathbb{ANSWER:-}$

$\boxed{4 \: days \: require \: to \: finish \: the \: work \: by \: 10 \: persons.}$