The average age of 3 children in a family is 20% of the average age of father and the eldest child. The total age of the mother and the youngest child is 39 years. If the father’s age is 26 years, what is the age of the second child?
(a) 15 yrs. (b) 18 yrs. (c) 20 yrs. (d) Cannot be determined
The average age of 3 children in a family is 20% of the average age of father and the eldest child. The total age of the mother and the youngest child is 39 years. If the father’s age is 26 years, what is the age of the second child?
(a) 15 yrs. (b) 18 yrs. (c) 20 yrs. (d) Cannot be determined
Since the total or average age of all family members is not given, the given data is inadequate. So, the age of the second child cannot be determined.
A pump motor is used to deliver water at a certain rate from s given pipe. To obtain twice as much water from the same pipe in the same time, power of the motor has to be increased to |
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a) |
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b) |
4 times |
c) |
8 times |
d) |
2 times |
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