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RRB RPF RPSF SI and CONS Model Papers 6 with solutions
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© examsnet.com
Question : 70
Total: 120
The wheat sold by a grocer contains 10% low quality wheat. What quantity of good quality wheat should be added to 150 kg of wheat so that the percentage of low quality wheat becomes 5%?
150 kg
135 kg
50 kg
85 kg
Validate
Solution:
(1) 10% low quality in 150 kg means 15 kg of low quality and 135 kg of good wheat.
Let x kg of good wheat is added to attain ratio 5 : 95 of low and high quality wheat.
According to the question,
15
135
+
x
=
5
95
=
1
19
Therefore,
x
=
150
kg
© examsnet.com
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