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RBI Assistant Prelims 2015 Sitting 1 Paper
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© examsnet.com
Question : 53
Total: 100
At present, Akki is seven years younger to Binny. Binny's age sixteen years hence, will be equal to twice of Akki's age two years ago. What will be the sum of their present ages?
72 years
61 years
54 years
62 years
46 years
Validate
Solution:
Binny's present age = x years
Akki's present age = (x - 7) years
According to the question,
x
+
16
=
2
(
x
−
7
−
2
)
⇒
x
+
16
=
2
x
−
18
⇒
2
x
−
x
=
18
+
16
⇒
x
=
34
years
Required sum
=
x
+
x
−
7
=
(
2
x
−
7
)
years
=
(
2
×
34
−
7
)
years
=
(
68
−
7
)
years
=
61
years
© examsnet.com
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