Question

1. The perimeter of a rectangle is 13cm and its width is 11/4 cm. Find its length.
2. The present age of Sahil's mother is
three times the present age of Sahil. After 5 years their ages will add to66 years. Find their present ages.​

Answer 1

Answer:

1. 15/2

2. 14,42

Step-by-step explanation:

1. Perimeter = 2(l + b)

           13  = 2(l + 11/4)

           13 = 2l + 11/2

⇒         2l = 13 - 11/2 = 15/2 cm

2. Let Sahil's age be x

∴ His mother's age = 3x

Now, we get the equation -

x + 5 + 3x + 5 = 66

4x + 10 = 66

4x = 56

⇒ x = 14

∴ Sahil's age = 14 years

  His mother's age = 14 × 3 = 42 years

Answer 2

$\huge{ \boxed{ \underline{ \mathfrak{ \dag{★Question★}}}}}$

The present age of Sahil’s mother is three times the present age of Sahil. After 5 years their ages will add to 66 years. Find their present ages.

$\huge{ \boxed{ \underline{ \mathfrak{ \dag{★Answer:-★}}}}}$

Assume present age of sahil be x

Present age of his mother will be 3x

after 5 years

sahil age=x+5

his mothers age =3x+5.

According to question

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

4x+10=66

4x=56

x=14

sahil present age=14 years

his mother present age= 42 years.