RRB Assistant Loco Pilot and Technician Model Paper 7 with solutions

Question : 21 of 100

Marks: +1, -0

7 men can complete a piece of work in 12 days. How many additional men will be required to complete double the work in 8 days ?

Solution:

(c)

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

⇒

7×12 × 2 = { M } _ { 2 } ×8 × 1

⇒

{ M } _ { 2 } = { 7 × 12 ×2 }/ { 8 } = 21

∴ No. of additional men = 21 – 7 = 14

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