A contractor undertook a contract to complete a part of a stadium in 9 months
with a team of 560 persons. Later on, it was required to complete the job in 5 months.
How many extra persons should he employ to complete the work?
Answers
Given data :-
→ A contractor undertook a contract to complete a part of a stadium in 9 months with a team of 560 persons.
→ Later on, it was required to complete the job in 5 months.
Solution:-
Here, 560 persons complete contract of stadius in 9 months.
Let, x persons complete their contract of stadium in 5 months.
According to assumption equation become,
→ 5x = 9 × 560
→ 5x = 5040
→ x = 5040/5
→ x = 1008 persons
Hence, 1008 persons complete their work in 5 months.
Now, to find extra persons needed in contract.
→ Extra persons = {1008 - 560}
→ Extra persons = 448
Hence,448 persons extra needed to complete their work in 5 months.
Answer:
448
Step-by-step explanation:
Given, a part of the stadium can completed by 560 persons in 9 months.
Hence, in 1 month, the work can be completed by
9
×
560
=
5040
persons.
So, in 5 months, the work can be completed by
5040
5
=
1008
persons.
Now, number of extra persons required to complete the work in 5 months =1008-560 = 448