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The age of Nirmal is 30% less than that of his brother’s age. Rishu, who is cousin of Nirmal, is 5/2 years older than Nirmal. Rishu’s father’s age is 200% more than that of him. If sum of ages of all of them except Nirmal's brother is 60 years then find the age of Nirmal?
  • a)
    10 years
  • b)
    15 years
  • c)
    14.5 years
  • d)
    20 years
  • e)
    None of these
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The age of Nirmal is 30% less than that of his brother’s age. Rishu, ...
Given information:

- The age of Nirmal is 30% less than that of his brother's age.
- Rishu, who is Nirmal's cousin, is 5/2 years older than Nirmal.
- Rishu's father's age is 200% more than Rishu's age.
- The sum of ages of all of them except Nirmal's brother is 60 years.

To find:

The age of Nirmal.

Assumptions:

- Let's assume Nirmal's brother's age is B years.
- Nirmal's age will be 30% less than B, so his age will be B - 0.3B = 0.7B years.

Calculations:


Let's calculate the ages step by step:

1. Rishu's age:
- Rishu's age = Nirmal's age + 5/2 years (as Rishu is 5/2 years older than Nirmal)

2. Rishu's father's age:
- Rishu's father's age = Rishu's age + 200% of Rishu's age (as Rishu's father's age is 200% more than Rishu's age)
- Rishu's father's age = Rishu's age + 2 * Rishu's age = 3 * Rishu's age

3. Sum of ages:
- Sum of ages of Nirmal, Rishu, and Rishu's father = Nirmal's age + Rishu's age + Rishu's father's age

Given that the sum of ages of all of them except Nirmal's brother is 60 years, we can write the equation as:
Nirmal's age + Rishu's age + Rishu's father's age = 60

Now, let's substitute the values we obtained earlier:

0.7B + (0.7B + 5/2) + 3 * (0.7B + 5/2) = 60

Simplifying the equation:

0.7B + 0.7B + 5/2 + 3 * 0.7B + 3 * 5/2 = 60
2.8B + 5/2 + 10.5B + 15/2 = 60
13.3B + 10 = 60
13.3B = 50
B = 50/13.3

Now, we can substitute the value of B in Nirmal's age equation:

Nirmal's age = 0.7 * (50/13.3)
Nirmal's age ≈ 10 years

Therefore, the age of Nirmal is approximately 10 years.
Free Test
Community Answer
The age of Nirmal is 30% less than that of his brother’s age. Rishu, ...
Let the age of Nirmal be 7x years.
Age of Nirmal's brother = 10x
Age of Rishu = (7x + 5/2) years
Age of Rishu's father = 3 (7x + 5/2) = (21x + 15/2) years
According to question,
7x + 7x + 5/2 + 21x + 15/2 = 60
35x + 20/2 = 60
35x = 60 - 10
x = 50/35 = 10/7
Age of Nirmal= 7x = 7`xx` 10/7 = 10 years.
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The age of Nirmal is 30% less than that of his brother’s age. Rishu, who is cousin of Nirmal, is 5/2 years older than Nirmal. Rishu’s father’s age is 200% more than that of him. If sum of ages of all of them except Nirmal's brother is 60 years then find the age of Nirmal?a)10 yearsb)15 yearsc)14.5 yearsd)20 yearse)None of theseCorrect answer is option 'A'. Can you explain this answer?
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The age of Nirmal is 30% less than that of his brother’s age. Rishu, who is cousin of Nirmal, is 5/2 years older than Nirmal. Rishu’s father’s age is 200% more than that of him. If sum of ages of all of them except Nirmal's brother is 60 years then find the age of Nirmal?a)10 yearsb)15 yearsc)14.5 yearsd)20 yearse)None of theseCorrect answer is option 'A'. Can you explain this answer? for Banking Exams 2025 is part of Banking Exams preparation. The Question and answers have been prepared according to the Banking Exams exam syllabus. Information about The age of Nirmal is 30% less than that of his brother’s age. Rishu, who is cousin of Nirmal, is 5/2 years older than Nirmal. Rishu’s father’s age is 200% more than that of him. If sum of ages of all of them except Nirmal's brother is 60 years then find the age of Nirmal?a)10 yearsb)15 yearsc)14.5 yearsd)20 yearse)None of theseCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Banking Exams 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The age of Nirmal is 30% less than that of his brother’s age. Rishu, who is cousin of Nirmal, is 5/2 years older than Nirmal. Rishu’s father’s age is 200% more than that of him. If sum of ages of all of them except Nirmal's brother is 60 years then find the age of Nirmal?a)10 yearsb)15 yearsc)14.5 yearsd)20 yearse)None of theseCorrect answer is option 'A'. Can you explain this answer?.
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