16. Present age of father is 42 years and that of his son is 14
years. Find the ratio of
(a) Present age of father to the present age of son.
(6) Age of the father to the age of son, when son was 12
years old.
(c) Age of father after 10 years to the age of son after 10 years.
(d) Age of father to the age of son when father was 30 years old.
need answer fast
Answers
Answer:
a 3:1
b 10:3
c 13:6
d 15:1
Step-by-step explanation:
this is the answer of your question
The present age of father = 42 years
The present age of son = 14 years
(a) Ratio of the present age of father to the present age of son = Present age of father / Present age of the son
= 42 / 14
= 3 : 1
Therefore, 3:1 is the ratio of the present age of the father to the present age of the son.
(b) The son's age will be 12 two years back (14 - 2 = 12) , so we will calculate the father's age two years ago.
Hence, two years ago father's age will be = 42 – 2 = 40 years
Hence, required ratio = 40 / 12
= (4 × 10) / (4 × 3)
= 10:3
Therefore, 10:3 is the ratio of the father's age to the son's age, when the son was 12 years old.
(c) Father will be 52 years old after 10 years ( 42 + 10 = 52 years)
Son's age after 10 years = 14 + 10 = 24 years
Hence, required ratio = 52 / 24
= (4 × 13) / (4 × 6)
= 13:6
Therefore, the ratio of the father's age after 10 years to the son's age after 10 years is 13 : 6.
(d) 12 years ago father’s age was 30 years (42 - 12 = 30)
Age of son at that time = 14 – 12 = 2 years
Required ratio = 30 / 2
= (2 × 15) / 2
= 15:1