Two numbers are such that the ratio between them is 3:5. If each increased by 10, the ratio between the new number so formed is 5:7. Find the original number.
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Heya please refer to the attachment...
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hey mate
given here
let two number are x and y
a/c to question
ratio of two number =3:5
or,
x:y=3:5
or,
x/y= 3/5
5x-3y=0. .....(1)
and ,
when
If each increased by 10, the ratio between the new number so formed is 5:7.
then ,
x+10:y+10= 5:6
or,
x+10/y+10=5/7
7x-5y= -20. ........(2)
by, (1)
y=( 5/3)x. ....(3)
so,
now,by (2)
7x-5(5/3)x=-20
21x-25x=-60
-4x=-60
x =15
and by (3)
y=25
thus:
the original two number will be
15,25.
I hopes its helps u.
@abhi.❤❤
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