SSC MTS Model Paper 4

Question : 33 of 150

Marks: +1, -0

If one pipe A can fill a tank in 20 minutes, then 5 pipes, each of 20% efficiency of A, can fill the tank in:

Solution:

Pipe A can fill a tank = 20 minutes
Let the efficiency of pipe A = 100
Then the efficiency of 5 new pipes

= 100 × { 20 } /{ 100 } × 5 = 100

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

⇒ 20 × 100 = 100 × D2
⇒ D2 = 20 min

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