Multiple choice

A contractor undertakes to make a road in 100 days and employs 180 men. After 40 days, he finds that only one - third of the road is made. How many extra men should he employ so that he is able to complete the work on time? एक ठेकेदार ने एक सड़क 100 दिनों में बनाने का ठेका लिया | उसने उसके लिए 180 व्यक्तियों को नियुक्त किया | 40 दिनों के बाद, उसे पता चला कि निर्माण-कार्य का एक - तिहाई ही हो पाया है | तदनुसार, कार्य को समयानुसार पूरा करने के लिए, उसे कितने व्यक्ति और नियुक्त करने होंगे ?

  1. 60

  2. 90

  3. 120

  4. 150
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Work done in 40 days = 1/3 by 180 men. Work remaining = 2/3 in 60 days. Men needed for 2/3 work in 60 days = (180 × 3 × 40)/(2 × 60) = 180 men. Extra men needed = 180 - 180 = 0. Wait - this doesn't match. Let me recalculate: (180 men × 40 days)/(1/3 work) = (x men × 60 days)/(2/3 work). Solving: 180 × 40 × 2/3 = x × 60 × 1/3. This gives x = 240. Extra = 240 - 180 = 60. Answer A is correct.

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