Question

3) The ratio of two numbers is 5:7. If 40 is added
to each number, then the ratio becomes 25: 31
Find the two numbers with linear equations in two variables method

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Answer 1

${\bigstar}$ANSWER:

60,84

${\bigstar}$ SOLUTION:

let the number 5x,7x

If 40 added in each number we get 25:31

so that number changes into 5x+40 and 7x +40

5x+50/7x+40= 25/31

25(7x+40)=31(5x+40)

175x+1000=155x+1240

20x=240

X=12

sub x=12 in given number

X1=5*12=60

X2=7*12=84