Question

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2.5 Solve the following word problems : (Any five)
(10)
1. The
The present age of Shanu's mother is three times the present age of Shanu. After 5 years
their ages will add to 66 years. Find their present ages.
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Answer 1

Answer:

Let the present age of Shanu be 'x'

According to the question:

(x+5)+(3x+5)=66

4x+10=66

4x=56

x= 14

Hence , Shanu's present age is 14 years

Shanu's mother age is 3x, 3*14 which is 42 years

Answer 2

$\red{Let \: the \: Shanu's\: age \: be \: x,} \\\blue{ Let \: the \: Shanu's \: mothers \: age \: be \: 3x,} \\ \\ \green{ After \: five \: years \: there \: age \: are...} \: \\ (x + 5)+ (3x + 5) = 66 \\ ∴4x + 10= 66 \\∴4 x = 66 - 10 \\∴ 4x = 56 \\ ∴x = \frac{56}{4} \\ ∴x = 14 \\ \red{∴Shanu's \: present \: age }\\ = \red{x}= \red{ \boxed{14 }}\\\blue{∴ Shanu's \: mother's \:present \: age \: }\\ = \blue{3x} = \blue{3 \times 14}= \blue{\boxed{ 42 }}$