RRB NTPC Mains or Stage 2 Model Paper 2 with solutions

Question : 72 of 120

Marks: +1, -0

18 men built a ship model in 7 days. How many days would it take for 15 men?

Solution:

(a)∴

M_1D_1 = M_2D_2

⇒18×7 = 15×D_2

∴D_2\text"18 ×7"/\text"15" =8.4

days

Go to Question:

Prev Question

Next Question