Math, asked by santananath, 10 months ago

Rahul's present age is 10 years and
grandfather's age is 72 years. Rahul
father is 30 years older than Rahul
Find the ratio of
a. Present age of Rahul's father to the
present age of Rahul.
b. Present age of Rahul's grandfather to
the present age of Rahul.
e. Present age of Rahul's father to the
present age of Rahul's grandfather.
d. Age of Rahul's father to Rahul's age,
when Rahul was 5 years old.
e Age of Rahul's father to Rahul's age
when his (Rahul's) father's age will be
72 years​

Answers

Answered by vaishnavi891
10

Rahul's age 10yr.

His grandfather's age 72 yr.

His father's age 30 more than Rahul's age= 10+30=40

To find the ratio of

(a) Rahul's age: his father's age

10:40

=1:4

(b) Grandfather's age: Rahul's age

72:10

=both are divisible by 2

=(72÷2):(10÷2)

=36:5

(c) Rahul's father's age : Grandfather's age

40:72

both are divisible by 4

= (40÷4):(72÷4)

=10:18

both are divisible by 2

=(10÷2):(18÷2)

=5:9

(d)Age of Rahul's father to Rahul's age,

when Rahul was 5 years old.

5 years are half of Rahul's age

So we will divide both the number by 2

(40÷2):(10÷2)

10:5

2:1

(e) Age of Rahul's father to Rahul's age

when his (Rahul's) father's age will be

72 years

According to my logic the age of

Rahul will :- 40

Rahul's father's age:- 72

To find ratio of -

Age of Rahul's father to Rahul's age

the equation must be 72 :40

both are divisible by 8

so we will divide both by 8

(72÷8):(40÷8)

9:5

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Answered by alibarmawer
3

Answer:

To find the ratio of

(a) Rahul's age: his father's age

10:40

=1:4

(b) Grandfather's age: Rahul's age

72:10

=both are divisible by 2

=(72÷2):(10÷2)

=36:5

(c) Rahul's father's age : Grandfather's age

40:72

both are divisible by 4

= (40÷4):(72÷4)

=10:18

both are divisible by 2

=(10÷2):(18÷2)

=5:9

(d)Age of Rahul's father to Rahul's age,

when Rahul was 5 years old.

5 years are half of Rahul's age

So we will divide both the number by 2

(40÷2):(10÷2)

10:5

2:1

(e) Age of Rahul's father to Rahul's age

when his (Rahul's) father's age will be

72 years

According to my logic the age of

Rahul will :- 40

Rahul's father's age:- 72

To find ratio of -

Age of Rahul's father to Rahul's age

the equation must be 72 :40

both are divisible by 8

so we will divide both by 8

(72÷8):(40÷8)

9:5

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