Question

If 42 persons can do a piece of work in 20 days,
then the number of persons that can do it in 14 days
is
(1) 60 (2) 30
(3) 40 (4) 50

Answer 1

42 people = 20 days (Given)

Find the number of people needed to complete the work in 14 days:

20 days = 42 people

1 day = 42 x 20 = 840 people

14 days = 840 ÷ 14 = 60 people

Answer: (1) 60 people

Answer 2

60 by if 42 people can do in 20 days ,then 1 day work 42×20 , then the work done by 14 persons will be 42×20÷14 then answer will be 60