Question

How many kgs of flour worth rs 25 per kg must be blended with 30 kgs of flour worth rs 30 per kg so that by selling the blended variety at rs 30 per kg there should be a gain of 10%?

Answer 1

let X kg of flour worth Rs 25per kg blended

then CP = 25x

CP of 30kg flour worth Rs 30 per kg= Rs 30*30

= Rs 900

a/q

(30+x)kg*Rs30= Rs (900+25x)*110/100

=> (900+30x)=(9900+275x)/10

=>10*(900+30x)=9900+275x

=>9000+300x= 9900+275x

=> 300x-275x= 9900-Rs 9000

=> 25x= 900

x=36kg