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?
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 3 of 9.
Shubham said:
6 years ago
40 :57
4000
2:3
(3-2)*4000/ (40*3)-(57*2)
= 4000/120-114
= 4000/6.
And Sumit new salary,
= 57x4000/6.
= 19x2000.
= 38000.
4000
2:3
(3-2)*4000/ (40*3)-(57*2)
= 4000/120-114
= 4000/6.
And Sumit new salary,
= 57x4000/6.
= 19x2000.
= 38000.
Vinji said:
6 years ago
Thanks for explaining @S.Narayana.
Roshan said:
6 years ago
I took it as 2/5(x)+4000 and 3/5(x)+4000.
Am I right?
Am I right?
Gopal said:
6 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?
Panshul Jamwal said:
6 years ago
How can we know that we are asked for current salary of sumit or old salary. What is the need of adding 4000 at last step? Please explain.
(1)
Navya said:
6 years ago
The ratio should be 38:55 not 40 : 57.
Vijay said:
7 years ago
How 6x=68000 to 3x=34000?
Please explain.
Please explain.
Ruchith praharsha said:
7 years ago
The original ratio of their salaries are 2:3 and they are increased by 4000 the new ratio is 40:57.
Let their salaries be 2x ,3x.
2x+4000:3x+4000 = 40 :57,
114x +228000 =120x +160000,
6x =68000,
3x =34000 sumits original salary is 34000,
And after increase his salary =34000 + 4000= 38000.
Let their salaries be 2x ,3x.
2x+4000:3x+4000 = 40 :57,
114x +228000 =120x +160000,
6x =68000,
3x =34000 sumits original salary is 34000,
And after increase his salary =34000 + 4000= 38000.
(2)
Chandini said:
7 years ago
@Basu.
Here;
6 represents the difference 4000.
Therefore 4000 ÷ 6*57=38000.
Here;
6 represents the difference 4000.
Therefore 4000 ÷ 6*57=38000.
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.
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.
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