Question

Rahul is thrice as old as Sulekha.Four years ago his age was four times Sulekha's age.The present age of rahul is

Answer 1

STEP 1: Define x:

Let Sulekha be x years old

Rahul will be 3x

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STEP 2: Find their age 4 years ago:

Four years ago,

Sulekha = x - 4

Rahul = 3x - 4

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STEP 3: Form equation:

Four years ago, Rahul's age was 4 times Sulekha's age:

3x - 4 = 4(x - 4)

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STEP 4: Solve x:

3x - 4 = 4(x - 4)

3x - 4 = 4x - 16

x = 12

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STEP 5: Find their age:

Sulekha = x = 12 years old

Ruhul = 3x = 3(12) = 36 years old

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Answer: Sulekha is 12 years old and Ruhul is 36 years old.

Answer 2

Let's see the answer,
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Let sulekha be "x" years old
Rahul will be "3x"

4 years ago,
Sulekha= x-4
Rahul = 3x-4

4 years ago, Rahul's age was 4 times Sulekha's age.

3x-4= 4(x-4)

=>. 3x-4=4x-16

=> 3x-4x= -16+4

=> -x= -12

=> x= 12

Sulekha's age is 12 years and Rahul's age is 3x= 12×3=36 years old.

Be brainly.....☺️