Question

Hari is 10 years old and Mani is x years old. if the sum of their ages is multiplied by 4, the answer is 100. How old is Mani?



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Answer 1

Step-by-step explanation:

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Answer 2

Answer:

$15$ years

Step-by-step explanation:

Given data:

• Age of Hari $=10$ years.

• Age of Mani $=x$ years

• When sum of their ages is multiplied by $4$, we get $100$

• According to the given data,

$4(10+x)=100$

• On dividing both sides by $4$, we get

$10+x=25$

• By moving the numeral to RHS, the equation becomes

$x=25-10$

• On subtracting the above values, we get

$x=15$

Hence, age of Mani $15$ years.