Question

How many kgs. of wheat costing Rs. 5 per kg must be mixed with 45 kg of rice costing Rs. 6.40 per kg so that 20% gain may be obtained by  selling the mixture at Rs. 7.20 per kg ?​

Answer 1

Answer:

18

Explanation:

x kg of wheat costs =x*5=5x rs

a/c to q,

total cost price of wheat and rice=5x+(45*6.40)

sp of mixture so that 20% gain can be achieved=(x kg wheat+45kg rice)*7.20

therefore frm d q,

cp+20%of cp=sp with 20% gain

(5x+45*6.40)+(20/100(5x+45*6.40))=(x+45)*7.20

x= 18 kg answer

x=18

hope it helps u

Answer 2

Explanation:

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