The monthly Salary of twoo person are in the ratio 3:5. If each receives an increase of 5 3.200 in monthly salary, the new ratio is 13:21 . Find their original salary.
let's the original salary of 3x and 5x
Due to increased in salary the revised salaries are ₹(3x + 200) & ₹(5x + 200)
3x +200. 13
________ = _______
5x + 200. 21
21*3x = 63x and 21*200 = 4200
13*5x = 65x and 13*200 = 2600
63x + 4200 = 65x + 2600
63X - 65 X = 4200 - 2600
2X = 1600
x= 1600/2
x= 800
800*3 = 2400
800*5 = 4000
original salaries 2400 and 4000
Answers
Answer:
The monthly salaries of A and B are in the ratio 3:5. If A and B get an increase of 5% and 10% of their existing salaries respectively, what will be the new ratio?
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7 Answers

Harsh Agrawal
, studies at Resonance Eduventures (2026)
Answered Aug 26, 2021
A:B=3:5
A:B=3x:5x
New salaries
3x+5%×3x=3x+3x/20=63x/20
5x+10%×5x=5x+x/2=11x/2
New ratios
(63x/20)×(2/11x)=126/220=63/110
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Anand Prakash
, B.A Mathematics & Hindi All Kinds, University of Delhi (2000)
Answered Aug 11, 2021 · Author has 1.8K answers and 251.6K answer views
Let proportionality constant=c.
Salary of A=3c and salary of B=5c.
After increase in the salary
Salary of A/salary of B = 3c(1+5℅) /5c(1+10℅)
=3c*21/20/5c*11/10 = 63c/20 *10/55c = 63c/110c
= 63:110.
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Ramaswami Krishnaswami
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Answered Aug 7, 2021 · Author has 1.2K answers and 291.7K answer views
Initial monthly salaries of A and B be 3 X and 5Y
A get an increase of 5 %. Salaries become 3 ( X + 0.05 X) = 3.15 X
B get an increase of 10 % . Salaries become 5 ( X + 0.10 X ) = 5.50 X
New ratio of A and B :— 315 : 550
63 : 110
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Hungenahalli Sitaramarao Badarinath
, Ph.D. in Civil Engineering. Maths keeps one mentally active.
Answered Aug 7, 2021 · Author has 40.5K answers and 26.4M answer views
Let A’s salary be 3x and B’s salary 5x. With the increase in their salaries, A gets 3x*1.05 = 3.15x and B gets 5x*1.1 =5.5x.
The new ratio of their salaries is 315 : 550 or 63 : 110.
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Answer:
original salaries 2400 and 4000
Step-by-step explanation:
let's the original salary of 3x and 5x
Due to increased in salary the revised salaries are ₹(3x + 200) & ₹(5x + 200)
3x +200. 13
________ = _______
5x + 200. 21
21*3x = 63x and 21*200 = 4200
13*5x = 65x and 13*200 = 2600
63x + 4200 = 65x + 2600
63X - 65 X = 4200 - 2600
2X = 1600
x= 1600/2
x= 800
800*3 = 2400
800*5 = 4000