The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of wheat so that the percentage of low quality wheat becomes 5%?

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BANK PO Exam (SBI) 2002 click here to view all questions

The wheat sold by a grocer contained 10% low quality wheat. What quantity of good quality wheat should be added to 150 kgs of wheat so that the percentage of low quality wheat becomes 5%?

A150 kgs

B135 kgs

C50 kgs

D85 kgs

Nithin ? undefined

Correct answer is: 150 kgs

Explanation:

Good quality content in 150 kgs. of wheat = 90% of 150 = 135 kgs.
In new mixture, low quality wheat is 5%, so good quality wheat 95%
and 5% of the new mixture = 15 kgs.

Therefore, New mixture = \(\frac{15 \times 100}{5}\) = 300 kg.

Therefore, Good quality of wheat added =  \(\left(300 - 150\right)\)= 150 kg.

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Correct answer is: 150 kgs Explanation: Good quality content in 150 kgs. of wheat = 90% of 150 = 135 kgs. In new mixture, low quality wheat is 5%, so good quality wheat 95% and 5% of the new mixture = 15 kgs. Therefore, New mixture = \(\frac{15 \times 100}{5}\) = 300 kg. Therefore, Good quality of wheat added =  \(\left(300 - 150\right)\)= 150 kg. Nithin ? answered undefined All Comments

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