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IBPS PO Prelims Model Paper 9 with solutions
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© examsnet.com
Question : 59
Total: 100
What will be the ratio of petrol and kerosene in the final solution formed by mixing petrol and kerosene that are present in three identical vessels in the ratio 4 : 1, 5 : 2 and 6 : 1 respectively?
166 : 22
83 : 22
83 : 44
78 : 55
None of these
Validate
Solution:
Mixture in each cask = x units
In first cask,
Petrol =
4
x
5
; Kerosene
=
x
5
In second cask,Petrol =
5
x
7
; Kerosene =
2
x
7
In third cask,
Petrol
=
6
x
7
, Kerosene
=
x
7
On adding,
Required ratio
=
(
4
x
5
+
5
x
7
+
6
x
7
)
:
(
x
5
+
2
x
7
+
x
7
)
= 83 : 22
© examsnet.com
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