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in Ratio and Proportion by (48.7k points)
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Present age of father is 45 years and that of his son is 15 years. Find the ratio of 

(i) Present age of father of the present age of son. 

(ii) Age of father to the age to son, when son was 10 years old. 

(iii) Age of father after 5 years to the age of son after 5 years. 

(iv) Age of father to the age of son, when father will be 60 years old.

1 Answer

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Best answer

Present age of father = 45 years 

Present age of son = 15 years 

(i) Required ratio = 45/15 = 3/1 = 3 : 1 

(ii) 5 years ago (when son was 10 years old) age of father = 45 – 5 = 40 years and age of son = 15 – 5 = 10 years 

Required ratio = 40/10 = 4/1 = 4 : 1 

(iii) After 5 years, age of father = 45 + 5 = 50 years and, age of son = 15 + 5 = 20 years 

Required ratio = 50/20 = 5/2 = 5 : 2 

(iv) when father will be 60 years old (i.e. after 15 years) age of son = 15 + 15 = 30 years 

Required ratio = 60/30 = 2/1 = 2 : 1

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