A man saves 20% of his monthly salary. If on account of dearness of things, he is to increase his monthly expenses by 20% and he is only able to save Rs. 200 per month. What is his monthly salary?
A. 4000
B. 2000
C. 5500
D. 5000
E. None

• let salary be x then expenses= x-(x*20/100)=4x/5
  20% increase on expenses i.e 4x*20/(5*100)+4x/5=24x/25
  x-24x/25=200 i.e x= 5000 option D
• 10 years agoHelpfull: Yes(4) No(0)
• consider 'x' is his salary.
  Initial savings is 20% of salary 'x' ie = x*(20/100)=1x/5.
  so his initial expense is=salary - initial savings
  = x - 1x/5
  = 5x-1x/5
  inti.expense = 4x/5.
  later expenses increses by 20% ie,
  new expense = intial expense * 20/100
  = 4x/5 * 1/5
  = 4x/25.
  total expense = initial expense + new expense
  = 4x/5 + 4x/25
  = (4x*5 + 4x)/25
  = (20x + 4x)/25
  = 24x/25
  after increses in his expense he can able to save rs.200
  so, the salary(x)is,
  salary(x)- total expense = savings
  x - 24x/25 = 200
  (25x - 24x)/25 = 200
  x = 25 * 200
  = 5000 rs
  so,his monthly salary 'x' = 5000 rs(ans D)
• 10 years agoHelpfull: Yes(0) No(0)
• Lets assume that the salary is Rs 100,
  then saving = Rs 20
  and expense = Rs 80,
  Now, new expense = Rs 80 + 20% of 80
  = Rs 96
  therefore, new savings = Rs 4
  Using unitary method,
  Rs 4 is the savings from Rs 100,
  hence, Rs 200 is the savings from Rs (100/4)*200 = Rs 5000
• 10 years agoHelpfull: Yes(0) No(0)
• 200/20%/100=200*100/100=20000/100=200 anwr is 2000
• 10 years agoHelpfull: Yes(0) No(0)
• let total salary be 100
  then expensee=100-20=80
  increase in expenses=80*20/100+80=96
  then saves =100-96=4
  4%=200
  =5000
• 8 years agoHelpfull: Yes(0) No(0)