Question

two which numbers are such that one is two times the other. if their different is 15 there sum is :
(1) 15
(2) 30
(3) 45
(4) 60
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Answer 1

Answer:

let the numbers be x and 2x

Diff = 2x-x = 15

x = 15

the numbers are 15, 30

sum = 15 + 30 = 45