Question
Pipe A can fill a tank in 12 hours, and Pipe B can fill
it in 18 hours. Pipe C can empty the full tank in 36 hours. If all three pipes are opened together, in how many hours will the tank be filled?Solution
ATQ, Let total work (capacity of tank) = 1 unit A’s rate = 1/12 per hour B’s rate = 1/18 per hour C’s (emptying) rate = −1/36 per hour Net rate = 1/12 + 1/18 − 1/36 LCM of 12, 18, 36 = 36 1/12 = 3/36 1/18 = 2/36 −1/36 = −1/36 Net = (3 + 2 − 1)/36 = 4/36 = 1/9 Time = 1 / (1/9) = 9 hours
If 15 & 4 # 25 = 35 and 50 # 5 & 7=15, then 12 & 6 # 32=?
Select the option that is related to the fourth number in the same way as the second number is related to first number and the sixth number is related t...
Select the option that is related to the third number in the same way as second number is related to the first number and the sixth number is related t...
Select the option that is related to third letter cluster in the same way second letter cluster is related to first letter cluster.
GARDEN : J...
Based on the numerical analogy given, choose the correct answer from the options given below:
16:56 32:?
Select the option that is related to the fourth number in the same way as the first number is related to the second number.
12 : 96 :: ? : 800
- Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster
AG... Given set: 278, 257, 365
- “Novak Djokovic” is related to “Serbia”, in the same way as “______” is related to “Switzerland”.
Statements:
X < W ≤ F = Q ≥ P = T ≥O ≥ S = R
Conclusions:
I) Q > R
I) Q = R
Relevant for Exams:
