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RRB Group D 15-Sep-2018 Shift 1 Solved Paper
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© examsnet.com
Question : 1
Total: 100
Three-sevenths of my current age is the same as four-fifths of that of one of my cousin's. My age three years ago will be his age ten years hence. My current age is
42
21
28
35
Validate
Solution:
(c) Let my current age be
x
years
My cousin's age be
y
years
From the question,
3
7
x
=
4
5
y
⇒
y
=
15
28
x
Also,
x
−
3
=
y
+
10
⇒
x
−
3
=
15
28
x
+
10
28
x
−
15
x
28
=
13
13
x
28
=
13
⇒
x
=
28
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