SSC CGL Exam > SSC CGL Questions > 80% of the current age of Vishal is 50% of th...
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80% of the current age of Vishal is 50% of the current age of Shivam. If the average age of Shivam and Vishal is 39 years, what is the current age of Vishal?
- a)30 years
- b)32 years
- c)36 years
- d)40 years
Correct answer is option 'A'. Can you explain this answer?
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Most Upvoted Answer
80% of the current age of Vishal is 50% of the current age of Shivam. ...
80% of Vishal = 50% of Shivam
Vishal : Shivam = 5 : 8
Sum of their ages = 39 × 2 = 78 years
Hence, Option A is correct.
Vishal : Shivam = 5 : 8
Sum of their ages = 39 × 2 = 78 years
Hence, Option A is correct.
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Community Answer
80% of the current age of Vishal is 50% of the current age of Shivam. ...
Given Information:
- 80% of Vishal's current age = 50% of Shivam's current age
- Average age of Shivam and Vishal = 39 years
Let's solve the problem step by step:
Step 1: Express the Given Information Mathematically
Let V be the current age of Vishal and S be the current age of Shivam.
- 0.8V = 0.5S (80% of Vishal's age is equal to 50% of Shivam's age)
- (V + S) / 2 = 39 (Average age of Shivam and Vishal is 39)
Step 2: Solve the Equations
From the first equation, we can express S in terms of V:
0.8V = 0.5S
S = 1.6V
Substitute S = 1.6V into the second equation:
(V + 1.6V) / 2 = 39
2.6V / 2 = 39
1.3V = 39
V = 39 / 1.3
V = 30
Step 3: Determine Vishal's Current Age
Therefore, Vishal's current age is 30 years.
Conclusion:
The current age of Vishal is 30 years. Hence, option A (30 years) is the correct answer.
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80% of the current age of Vishal is 50% of the current age of Shivam. If the average age of Shivam and Vishal is 39 years, what is the current age of Vishal?a)30 yearsb)32 yearsc)36 yearsd)40 yearsCorrect answer is option 'A'. Can you explain this answer?
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