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The ages of Shivali and Tanisha are in the ratio of 11:7 respectively.
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03 Dec 2020, 07:15
03 Dec 2020, 07:15
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Difficulty:
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Question Stats:
88% (02:01) correct
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based on 48
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The ages of Shivali and Tanisha are in the ratio of 11:7 respectively. After 8 years the ratio of their ages will be 15:11. What is the difference in years between their ages?
A. 4 year
B. 6 year
C. 8 year
D. 12 year
C. 14 year
A. 4 year
B. 6 year
C. 8 year
D. 12 year
C. 14 year
Re: The ages of Shivali and Tanisha are in the ratio of 11:7 respectively.
[#permalink]
03 Dec 2020, 07:31
03 Dec 2020, 07:31
1
Kudos
Shivali's present age = 11x
Tanisha's present age = 7x
After 8 years
Shivali's age = 11x + 8
Tanisha's age = 7x + 8
As per question 11x + 8/7x + 8 = 15/11
121x + 88 = 105x + 120
16x = 32
x = 2
Difference in their ages = 11*2 - 7*2 =4*2 =8
Tanisha's present age = 7x
After 8 years
Shivali's age = 11x + 8
Tanisha's age = 7x + 8
As per question 11x + 8/7x + 8 = 15/11
121x + 88 = 105x + 120
16x = 32
x = 2
Difference in their ages = 11*2 - 7*2 =4*2 =8
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Re: The ages of Shivali and Tanisha are in the ratio of 11:7 respectively.
[#permalink]
03 Dec 2020, 12:06
03 Dec 2020, 12:06
Bunuel wrote:
The ages of Shivali and Tanisha are in the ratio of 11:7 respectively. After 8 years the ratio of their ages will be 15:11. What is the difference in years between their ages?
A. 4 year
B. 6 year
C. 8 year
D. 12 year
C. 14 year
A. 4 year
B. 6 year
C. 8 year
D. 12 year
C. 14 year
11---------------->15 = Difference is 4
7----------------->11 = Difference is 4
Given , After 8 years the ratio of their ages will be 15:11
So 4 represents 8 years, thus (11-7 = 4) represents 8 years, Answer must be (C)
