Aptitude - Ratio and Proportion - Discussion

Discussion Forum : Ratio and Proportion - General Questions (Q.No. 7)
7.
Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, the new ratio becomes 40 : 57. What is Sumit's salary?
Rs. 17,000
Rs. 20,000
Rs. 25,500
Rs. 38,000
Answer: Option
Explanation:

Let the original salaries of Ravi and Sumit be Rs. 2x and Rs. 3x respectively.

Then, 2x + 4000 = 40
3x + 4000 57

57(2x + 4000) = 40(3x + 4000)

6x = 68,000

3x = 34,000

Sumit's present salary = (3x + 4000) = Rs.(34000 + 4000) = Rs. 38,000.

Discussion:
82 comments Page 6 of 9.

Anjali said:   1 decade ago
Hey, why can't we take Ravi's and Sumit's original salary as 1x and 2x respectively? Why only 2x and 3x?

Partha said:   8 years ago
4000 should not be added because the question is if it increases, not increased. So, answer is 34000.

Jay said:   8 years ago
Why is 57 on the side of 2 and 40 on the side of 3 is 2 greater than 3 in a 2:3 ratio?

Prapu said:   1 decade ago
I did't understand clearly please explain this solution in an understandable manner.

Chandini said:   7 years ago
@Basu.

Here;
6 represents the difference 4000.
Therefore 4000 ÷ 6*57=38000.

Varsha said:   3 years ago
How we get 2x+4000/3x+4000 = 47/50?

and why not 2x+4000/3x+4000 = 47x/50x?
(8)

Divya said:   1 decade ago
@Shikha.

40/57 is the new ratio. Read the question twice, you will get it.

Keerthi said:   1 decade ago
My question is why can't we find the value of x, and then multiply by 3.

Imtiyaz said:   7 years ago
@Vishal.

How you get the q value as 2000/3
Can you explain me?

Sakshi said:   8 years ago
x= 680000÷6
3x+4000 we can write 3*680000÷6+4000=38000.


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