21161
Unique Id: 18293 Edit screen 1 Edit screen 2

DIRECTIONS for the question: Solve the following question and mark the best possible option.

A tank is filled by a pipe A in 20 min. and pipe B in 30 min. When filled, it can be emptied by pipe C in 60 minute. If all the three pipes are opened simultaneously, 2/3rd of tank will be filled in
A)
15 min
B)
25 min
C)
10 min
D)
None of these 

Question include in Following Tests :
Work & Chain Rule Level I - 02
LLB DU Mock Test - 03
PDF - MAT - Mathematical Skills 04
HSEE - Work & Chain Rule - PE 04