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:
83 comments Page 4 of 9.

Imtiyaz said:   8 years ago
@Vishal.

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

Rohit said:   8 years ago
The question demands Sumit's real salary. Not the increased one.

It clearly says " If the salary is increased" This means the answer has to be 34000. Isn't it?

Rahul said:   7 years ago
Hello Everyone, can anyone please make me understand that.

If Sumit salary is 34000, then which must as the multiple of 3?

That means it must be something like as : 3x=34000.

Kingshuk basu said:   7 years ago
R:S = 2x : 3x.
40:57cross {57*2:40*3} = 114:120.
(120-114)=6,
4000:4000cross{40*4000:57*4000} = 228000-160000 = 68000/6,
=11333.33333 * 3 = 34000 + 4000 = 38000.

Chandini said:   7 years ago
@Basu.

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

Jay said:   9 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?

Vijay said:   7 years ago
How 6x=68000 to 3x=34000?

Please explain.

Navya said:   7 years ago
The ratio should be 38:55 not 40 : 57.

Gopal said:   7 years ago
The ratio of students in class A and class B is 4:5. The ratio of the fee collected per student from class A and class B is 25:16. If the total fee collected is 81 lakh, what is the fee collected from class B. Can anyone solve this?

Roshan said:   7 years ago
I took it as 2/5(x)+4000 and 3/5(x)+4000.

Am I right?


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