Question

any one who give the answer it is brainlist question

Answer 1

Given -

3 watermelons= 30
Rate of one watermelon =10-------(1)

2 pineapples and one watermelon=20
Rate of one pineapple=5 (from 1)------(2)

One pineapple and four bananas =9
Rate of one banana=1 (from2)------(3)

Then

One pine apple + one banana * one watermelon = 15 answer (from 1,2 &3)

I hope helps you

Answer 2

hey dear your answer will be 15 ...
as the price of
one watermelon is 10
one pineapple is 5
and price of one banana is 1 ..
solve your question by D.M.A.S. method u will got your answer ..
in this basis.. 10×1+5 = 15
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hope it helps dear