Question

36 boys can do a piece of work in 49 days.
How many extra boys should be engaged so
that the work may be finished in 21 days ?​

Answer 1

Answer:

8.67

Step-by-step explanation:

boys=36/x

days=49/21

it is the case of inversely

X/36=49/21

21x=36×49

X=36×49/21

=36×7/3

=242/3

=8.67

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