The age of Sonal and Nitya are in the ratio of 9 : 5 respectively. After 8 years the ratio of their age will be 13 : 9. What is the difference (in years) between their age?

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The age of Sonal and Nitya are in the ratio of 9 : 5 respectively. After 8 years the ratio of their age will be 13 : 9. What is the difference (in years) between their age?

A4 years

B12 years

C6 years

D8 years

Nithin ? undefined

Correct answer is: 8 years

Explanation:

Let the present age of Sonal and Nitya be 9x and 5x years respectively
According to the question,

\(\frac{9x+8}{8x+8}=\frac{13}{9}\)

\(\implies 81x + 72 = 65x + 104\)

\(\implies 81x - 65x = 104 - 72\)

\(\implies 16x = 32\)

\(\implies x = \frac{32}{16} = 2\)

Therefore, Required difference = \(9x - 5x\) = \(4 \times 2\) = 8 years

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The profit earned after selling an article for Rs. 1,516 is the same as loss incurred after selling the article for Rs. 1,112. What is the cost price of the article ?

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The profit earned after selling an article for Rs. 1,516 is the same as loss incurred after selling the article for Rs. 1,112. What is the cost price of the article ?

ARs. 1,314

BRs. 1,343

CRs. 1,414

DRs. 1,434

Nithin ? Aug 11 '2022 at 8:11

Correct answer is: Rs. 1,314

Explanation:

Let the cost price of the artice be Rs. x.
According to the question,

\(1516 - x = x - 1112\)

\(\implies 2x = 1516 + 1112 = 2628\)

\(\implies x =\frac{2628}{2}\)

\(= Rs. 1314\)

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Tanvi started a business investing Rs. 45,000. After 8 months Anisha joined her with a capital of Rs. 52,000. At the end of the year the total profit was Rs. 56,165. What is the share of profits of Anisha ?

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Tanvi started a business investing Rs. 45,000. After 8 months Anisha joined her with a capital of Rs. 52,000. At the end of the year the total profit was Rs. 56,165. What is the share of profits of Anisha ?

ARs. 21,450

BRs. 24,440

CRs. 27,635

Dnone of these

akilesh kharvi ? Jun 21 '2020 at 12:14

Correct answer is: none of these

Explanation:

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30 men can do a piece of work in 16 days. How many men would be required to do the same work in 20 days ?

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30 men can do a piece of work in 16 days. How many men would be required to do the same work in 20 days ?

A12

B36

C48

D24

ragu ? Feb 1 '2020 at 21:54

Correct answer is: 24

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