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IBPS RRB Officer Prelims 14 Nov 2016 Shift 2 Paper
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© examsnet.com
Question : 68
Total: 80
Jar A has 36 litres of mixture of milk and water in the respective ratio of 5 : 4. Jar B which had 20 litres of mixture of milk and water, was emptiedinto jar A, and as a resultin jar A, the respective ratio ofmilk and water becomes 5 : 3.What was the quantity of waterin jar B ?
5 litres
3 litres
8 litres
2 litres
1 litres
Validate
Solution:
(1) Quantity of water in jar B = x litres (let).
∴ Quantity of milk
= (20 – x) litres
In Jar A,
Quantity of milk
=
5
9
×
36
=
20
litres Quantity of water
=
4
9
×
36
=
16
litres
According to the question,
20
+
20
−
X
16
+
x
=
5
3
⇒
40
−
x
16
+
x
=
5
3
⇒ 80 + 5x = 120 – 3x
⇒ 8x = 120 – 80 = 40
⇒
x
=
40
8
=
5
litres
© examsnet.com
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