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IBPS RRB Officer Prelims 14 Nov 2016 Shift 1 Paper
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© examsnet.com
Question : 46
Total: 80
Jar A contains 78 litres of milk and water in the respective ratio of 6 : 7. 26 litres of the mixture was taken out from Jar A. What quantity of milk should be added to jar A, so that water constitutes 40% of the resultant mixture in jar A?
8 litres
36 litres
12 litres
14 litres
18 litres
Validate
Solution:
(5) In remaining (78 – 26)
= 52 litres of mixture,
Quantity of milk =
6
13
×
52
= 24 litres
Quantity of water =
7
13
×
52
= 28 litres
Let x litres of milk be added.
∴
28
52
+
x
=
40
100
=
2
5
⇒
104
+
2
x
=
140
⇒
2
x
=
140
–
104
=
36
⇒
x
=
36
2
=
18
litres
© examsnet.com
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