Question

1+X
Five years ago, a mother was seven times as old as her daughter. Five years
hence, she will be three times as old as her daughter. Find their present ages.
5. The digit at ones place of a 2-digit nutaber is four times the digit at tens place. The
number obtained by reversing the digits exceeds the given number by 54. Find
Am
the given number
20
6. The sum of the digits of a 2-digit number is 10. The number obtained by
interchanging the digits exceeds the original number by 36. Find the original
number.
. The sum of two consecutive multiples of 6 is 66. Find these multiples.
The numerator of a rational number is 3 less than its denominator. If the
numerator is increased by 1 and the denominator is increased by 3, the number
1
becomes Find the rational number.
2
Upskeedus
A
ream in one and a half hour. It​

Answer 1

Answer:

Let daughters age be x

mothers age be y;

7(x-5) = y-5 (five years ago) .......... eq. 1

3(x+5) = y+5 (five years hence) ....... eq. 2

from eq. 1

7x-35+5 =y

y=7x-30

Putting value of y in eq. 2

3x+15 = 7x-30+5

4x = 15+25

4x = 40

x = 10 ...... daughter's age

putting value of x in eq. 1

7(10-5) = y-5

40 =y.......... mother's age