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The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Four yrs hence this ratio becomes 9:10 respectively. What is Nisha's present age in yrs?
- a)18
- b)14
- c)17
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Fou...
The ratio of present ages of Nisha and Shilpa is 7 : 8
Four yrs hence this ratio becomes 9 : 10
Present age of Nisha = 4 x (10 - 9)/9 x 8 - 10 x 7 x 7 = 14 years
Four yrs hence this ratio becomes 9 : 10
Present age of Nisha = 4 x (10 - 9)/9 x 8 - 10 x 7 x 7 = 14 years
Most Upvoted Answer
The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Fou...
Given:
The ratio of Nisha's age to Shilpa's age is 7:8.
The ratio of their ages 4 years from now is 9:10.
To find:
Nisha's present age.
Let's assume that Nisha's present age is 7x and Shilpa's present age is 8x.
Calculation:
Four years from now, Nisha's age will be 7x + 4 and Shilpa's age will be 8x + 4.
According to the given information, the ratio of their ages at that time will be 9:10.
So, we can write the equation as:
(7x + 4)/(8x + 4) = 9/10
Cross multiplying, we get:
10(7x + 4) = 9(8x + 4)
70x + 40 = 72x + 36
70x - 72x = 36 - 40
-2x = -4
x = -4/-2
x = 2
Now, we can find Nisha's present age:
Nisha's age = 7x = 7(2) = 14 years.
Therefore, Nisha's present age is 14 years (Option B).
The ratio of Nisha's age to Shilpa's age is 7:8.
The ratio of their ages 4 years from now is 9:10.
To find:
Nisha's present age.
Let's assume that Nisha's present age is 7x and Shilpa's present age is 8x.
Calculation:
Four years from now, Nisha's age will be 7x + 4 and Shilpa's age will be 8x + 4.
According to the given information, the ratio of their ages at that time will be 9:10.
So, we can write the equation as:
(7x + 4)/(8x + 4) = 9/10
Cross multiplying, we get:
10(7x + 4) = 9(8x + 4)
70x + 40 = 72x + 36
70x - 72x = 36 - 40
-2x = -4
x = -4/-2
x = 2
Now, we can find Nisha's present age:
Nisha's age = 7x = 7(2) = 14 years.
Therefore, Nisha's present age is 14 years (Option B).
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The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Four yrs hence this ratio becomes 9:10 respectively. What is Nishas present age in yrs?a)18b)14c)17d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Four yrs hence this ratio becomes 9:10 respectively. What is Nishas present age in yrs?a)18b)14c)17d)None of theseCorrect answer is option 'B'. Can you explain this answer? for Railways 2024 is part of Railways preparation. The Question and answers have been prepared according to the Railways exam syllabus. Information about The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Four yrs hence this ratio becomes 9:10 respectively. What is Nishas present age in yrs?a)18b)14c)17d)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Railways 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The ratio of present ages of Nisha and Shilpa is 7:8 respectively. Four yrs hence this ratio becomes 9:10 respectively. What is Nishas present age in yrs?a)18b)14c)17d)None of theseCorrect answer is option 'B'. Can you explain this answer?.
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