Question

Two number are such that the ratio between them is 3:5.lf eachis lncreased by 10,the ratio between the new numbers so formed 5:7.find the original number

Answer 1

Answer:

let the numbers be 3x and 5x respectively

A/Q

3x+10/5x+10=5/7

by cross multiplication we have

7(3x+10)=5(5x+10)

=21x+70=25x+50

=70-50=25x-21x

=20=4x

=5=x

so the numbers are 3x and 5x

=3*5 and 5*5

=15 and 25

original number=15/25

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Answer 2

Step-by-step explanation:

we can find the original no. by using linear equations in one variable