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RRB RPF RPSF SI and CONS Model Papers 5 with solutions
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© examsnet.com
Question : 94
Total: 119
Three years ago, the average age of a family of 5 members was 17 years. A baby having been born, the average age of the family is the same today. The present age of the baby (in years) is
2
2.4
3
1.5
Validate
Solution:
(1) Three years ago, total age of family
=
17
×
5
=
85
years
Total present age of family
=
85
+
(
5
×
3
)
100
years
Total present age of family including child
=
17
×
6
=
102
years
Present age of the baby
=
102
−
100
=
2
years
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