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Mathematics

Answered

the age of two girls are in the ratio 5 ratio 7 8 year ago their ages were in the ratio 7 ratio 13 find their present ages

Answer :

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Answer:

Step-by-step explanation:

Their present ages is 50 and 70.

Let Ages of two persons is 5x,7x

Eighteen years ago their ages were (5x-18),(7x-18) Their ratio is 8:13 so…

(5x-18)/(7x-18)=8/13

13(5x-18)=8(7x-18)

65x-234=56x-144

65x-56x=234–144

9x=90

x=10

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