Question

Answer these
1. After 12 year i shall be 3 times as old i was 4 years ago. Find my present age
2. A number consists of two digits whose sum is 10. If 36 is added to the number its digits are reserved. Find the number
3. The numerator of a fraction is 5 less than the denominator. If two is added to both the numerator and the denominator, it become 1/2. Find the fraction

Answer 1

Answer:

1 ans 6

2 ans 3 and 7

3 ans 3

Answer 2

Answer:

1. 12years
2. the original number, xy (=10*x + y) = 30 + 7 = 37. Check: 37 + 36 = 73
3. Correct answer is 17/22

Let the denominator be x

Fraction=

x

x−5

x+3x−5+3 = 54

x+3x−2 = 54

5(x−2)=4(x+3)

5x−4x=12+10

x=22

So, numerator=x−5=22−5=17

and denominator=22

So, the original fraction=

22

17

Step-by-step explanation:

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