Question

. Weights of two friends A and B are in the ratio of
1:2. A's weight increases by 20% and the total weight
of A and B together becomes 60 kg, with an increase
of 30%. By what percent the weight of B increase?​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

Weight of A is x and weight of B is 2x, given that 60kg weight is the 30% increase of original weight,

so,

(130/100)*w=60,

w=600/13kg (w= original weight) x+2x=600/13, x=200/13

so, weight of A =200/13 and of B= 400/13 (120/100)*(200/13)+[(100+A)/100]*(400/13)=60

solve for B we will B=35%