ML Aggarwal Solutions Class 8 Mathematics Solutions for Direct and Inverse Variation Exercise 9.2 in Chapter 9 - Direct and Inverse Variation

Question 8 Direct and Inverse Variation Exercise 9.2

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?



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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