1.

4. The Sunset the age a woman and her daughter is 46 years. In 4 years time, the ratio of thier age will be 7:2 Find the present age​

Answer»

ANSWER:

The sum of the ages of a woman and her daughter is 46 years.

x + y = 46

or

y = (46-x)

;

In FOUR years time the ratio of there ages will be 7:2

Cross multiply

2(x+4) = 7(y+4)

2x + 8 = 7y + 28

2x = 7y + 28 - 8

2x = 7y + 20

replace y with (46-x)

2x = 7(46-y) + 20

2x = 322 - 7x + 20

2x + 7x = 342

9x = 342

x = 342/9

x = 38 yrs is the woman's age

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