Question
Quantity I. Two pipes A and B can fill a tank in 12
minutes and 16 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 9 minutes? Quantity II. Two pipes A and B can fill a tank in 24 minutes and 48 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?Solution
Quantity I. Let B be closed after x minutes. Let total capacity of tank = LCM (12 & 16) = 48 L So A’ 1 min work = 48/12 = 4L B’s 1 min work = 48/16 = 3L So as per the question, 4×9 +3×x= 48 or 3x = 12 or x =4min Quantity II. Let B be closed after minutes. Let total capacity of tank = LCM (24 & 48) = 48 L So A’ 1 min work = 48/24 = 2L B’s 1 min work = 48/48 = 1L So as per the question, 18×2 +1×x= 48 or x = 12 Hence Quantity I < Quantity II
How many male members are there in the family?
Which of the following is true about K?
If R has only one child and there are four male members in the family then how is the child of R related to Y?
How is M related to L?
How is U related to V?
Which of the following combinations of person is not a married couple?
How is M related to I?
Answer the questions based on the information given below:
There are six members D, E, F, G, H and I in the family of three generations. Each g...
N is married to O. P is the daughter of N, who is the mother-in-law of Q. R is the son of Q. O has only one child. How is O related to Q?
U is the daughter in law of whom among the following