The cost (per Kg) of 3 qualities of rice are 45, 42 and 35 respectively. The cost (per Kg) of a mixt

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01 Jul 2021

The cost (per Kg) of 3 qualities of rice are 45, 42 and 35 respectively. The cost (per Kg) of a mixture of 10 Kg of first, 8 Kg of second and 7 Kg of third will be

OPtion

1) 39.86
2) 39.64
3) 40.46
4) 41.24
5) 42.34
6) 42.38
7) 43.46
8) 43.12
9) 44.42
10) none of these

Solution

10 kg of 1st= 45*10= 450
8 kg of 2nd= 42*8= 336
7 kg of 3rd= 35*7= 245
total rice= 25 kg
total price= 450+336+245=1031
per kg. price= 1031/25
= 41.24 rs.

Correct Option: 4 Best Solution (4)