Question

1.
The present ages of A and B are in the ratio 7:5. Ten years later, their ages will
be in the ratio 9:7. Find their present ages.
2.
Two years ago, father was three times as old as his son and two years hence, twice
his age will be equal to five times that of his son. Find their present ages.
3. The sum of the digits of a 2-digit number is 8. The number obtained by
interchanging the digits exceeds the given number by 18. Find the given numbers.
4.
The ones digit of a 2-digit number is twice the tens digit. When the number
formed by reversing the digits is added to the original number, the sum is 99. Find
the original number.
157​

Answer 1

Answer:

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