the ratio between two number is 12:13 if each number is reduced by 20, the ratio becomes 2:3 find the numbers
Answers
Answered by
3
Answer:24 and26
Step-by-step explanation:
Let the number be 12x:13x.
A.T.Q.
12x-20=2x
x=2
The number is 24:26.
Answered by
3
Step by step explanation
12:13
12a:13a
12a - 20 : 13a - 20
=2/3
12a - 20. 2
—————. =. ——-
13a - 20. 3
(Cross multiplication)
2(13a - 20 ) =3(12 a-20)
36a - 60 = 26a - 40
36a - 26a = 40 + 60
10a = 20
a = 20/10
a=2
12a = 2 x 12 = 24
13a = 2 x 13 = 26
12:13
12a:13a
12a - 20 : 13a - 20
=2/3
12a - 20. 2
—————. =. ——-
13a - 20. 3
(Cross multiplication)
2(13a - 20 ) =3(12 a-20)
36a - 60 = 26a - 40
36a - 26a = 40 + 60
10a = 20
a = 20/10
a=2
12a = 2 x 12 = 24
13a = 2 x 13 = 26
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