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  1. Two blends of a commodity costing Rs. 35 and Rs. 40 per kg. respectively are mixed in the ratio 2 : 3 by weight. If one–fifth of the mixture is sold at Rs. 46 per kg and the remaining at the
    rate of Rs. 55 per kg. the profit percent is
    1. 50
    2. 30
    3. 40
    4. 20
Correct Option: C

Let 5 kg of mixture be prepared.
∴  C.P. of 5 kg of mixture
= Rs. (2 × 35 + 3 × 40)
= Rs. (70 + 120)
= Rs. 190
Total S.P. of this mixture
= Rs. (46 + 4 × 55)
= Rs. (46 + 220) = Rs. 266
∴  Profit per cent

=
266 − 190
× 100
190

=
7600
= 40%
190



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