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ML Aggarwal Solutions Class 8 Mathematics Solutions for Direct and Inverse Variation Exercise 9.2 in Chapter 9 - Direct and Inverse Variation
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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?
Answer:
Given:
To complete a work, a team of 560 persons was employed for = 9 months
When the same work to be completed in 5 months,
the number of persons required will be = (560 × 9)/5 = 1008 person
We know that number of persons already working are = 560
∴ More number of persons to be required are = 1008 – 560
= 648 persons
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