Question

two numbers are such that the ratio between them is 3:5 if it is increased by 10 the ratio between them so form is5:7 find the original number.​

Answer 1

Step-by-step explanation:

Answer

A] Let the two numbers be x,y

y

x

=

5

3

⇒x=

5

3

y

y+10

x+10

=

7

5

=7x+70=5y+50

=7x+20=5y

=7x+20=5y=0

=7(

5

3

)y+20−5y=0

=21y+100−25y=0

=100−4y=0

=100=4y

∴y=25

x=

5

3

×25=15

Thus numbers are 15,25

Answer 2

Let the ratio,3:5 be taken as 3x and 5x

BTP,

If the ratios are increased by 10 i.e,

3x+10 and 5x+10

BTP,

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

8x+20=12x

8x-12x=-20

-4x=-20

x=-20/-4

=5

Therefore,the original ratio 3x and 5x

3x=3×5=15

5x=5×5=25

Hope it helps!!