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RRB Assistant Loco Pilot and Technician Model Paper 3 with solutions
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© examsnet.com
Question : 8
Total: 100
Divide 81 into three parts so that
1
2
of 1st ,
1
3
of 2nd and
1
4
of 3rd are equal.
36, 27, 18
27, 18, 36
18, 27, 36
30, 27, 24
Validate
Solution:
(c) Let 1st, 2nd and 3rd part represented by x, y, z
Let
1
2
X
=
1
3
Y
=
1
4
Z
=
K
∴ x = 2k, y = 3k, z = 4k
According to question
x + y + z = 81
⇒ 2k + 3k + 4k = 81 ⇒ 9k = 81 ⇒ k = 9
Hence, parts are 18, 27,36.
© examsnet.com
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