Anita started working in January 2014 and used to save 20% of her

Question

Anita started working in January 2014 and used to save 20% of her monthly salary. Her salary increased by 100% in January 2015 and by 200% in January 2016, and her expenses doubled over the two years. What was the percentage increase in her monthly savings between February 2014 and February 2016?

A. 320%
B. 500%
C. 600%
D. 2100%
E. 2200%

A. 320%
B. 500%
C. 600%
D. 2100%
E. 2200%

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ankushsambare · Answer

Let initial monthly salary = S.
February 2014: savings = 20% of S = 0.2S.
January 2015: salary increases 100% → new salary = 2S.
 January 2016: salary increases 200% → new salary = 3×(2S) = 6S (so February 2016 salary = 6S).
Initial expenses = S − 0.2S = 0.8S. Expenses doubled over the two years → final expenses = 2 × 0.8S = 1.6S.
February 2016 savings = final salary − final expenses = 6S − 1.6S = 4.4S.
Increase in savings = 4.4S − 0.2S = 4.2S.
Percent increase 
=> (4.2S / 0.2S) × 100% 
=> 21 × 100% 
=> 2100%.

Answer: D.

ravi1522 · Answer

Hello 
Lets the initial salary be X
expenses will be 0.8x
salary in 2015 will be 2x
salary in 2016 will be 6x
expenses in 2016 is 1.6x
saving in 2016=6x-1.6x=4.4x
saving in 2014 is 0.2x
% increase is =(4.4x-0.2x)*100/0.2x=2100%

Hence option D is correct

Dereno · Answer

Let the salary on Jan 2014 be 100.

Saving is 20% of Salary = 20

Expenses = 100-20=80

So, for Jan 2014, Salary = 100,

Expenses = 80

Savings = 20.

Further, the salary increased by 100% in Jan 2015. So, the salary becomes 100 *(1+100%) = 200

Salary Jan 2015 = 200 .

The salary, is further increased by 200% = 200*(1+200%) = 200*3 = 600

Salary Jan 2016 = 600

Expenses doubled from 2014 to 2016,  thus, the expense on Jan 2026

= 2* expense on Jan. 2014

= 2*80

= 160

Savings on Jan 2016 = 600 - 160 = 440.

% increase in saving ( 2014 - 2016) =   *100

=  *100

=  2100

Option D

007Phoenix007 · Answer

Let current salary be 100
Saving = 20
Expenses = 80
Salary in 2015 = 2×100=200
Salary in 2016 = 3×200=600
Expenses in 2016 = 2×80=160
Saving in 2016= salary- Expenses = 600-160 = 440
Saving % =  *100/Saving(2014) = (440-20)*100/20 = 2100%

So option D is correct

rohitz98 · Answer

Following is the table describing the given data
    Description  
  2014  
  2015  
  2016  
 
  Salary 
 100 
 200 
 600 
 
  savings 
 20 
  
 440 
 
  expenses 
 80 
  
 160

From given data salary expenses and savings are calculated in the table
Hence percent increase in savings is (440-20) x 100/20 = 2100%  (Option D)

ExpertsGlobal5 · Answer

Experts' Global Vide Explanation:

https://www.youtube.com/watch?v=MTYUDJAB2tA

Anita started working in January 2014 and used to save 20% of her

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Description	2014	2015	2016
Salary	100	200	600
savings	20		440
expenses	80		160

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Anita started working in January 2014 and used to save 20% of her

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