RRB RPF RPSF SI and CONS Model Papers 3 with solutions

Question : 33 of 120

Marks: +1, -0

A man undertakes to do a certain work in 150 days. He employs 200 men. He finds that only a quarter of the work is done in 50 days. The number of additional men that should be appointed so that the whole work will be finished in time is :

Validate

Solution:

1/4

work in 50 days.

∴ { { M } _ { 1 } { D } _ { 1 } } /{ { W } _ { 1 } } = { { M } _ { 2 } { D } _ { 2 } }/{ { W } _ { 2 } }

⇒ { 200 × 50 }/ { { 1 } /{ 4 } } = { { M } _ { 2 } × 100 }/ { { 3 }/ { 4 } }

⇒ { M } _ { 2 } × 100 = 200 ×50× 3

⇒ { M } _ { 2 } = 300

∴ Additional men = 100

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