5% of income of A is equal to 15% of income of B and 10% of income of B is eqaul to 20% of income of C. If income of C is Rs. 2000, then total income of A, B and C is :

a. Rs. 6000
b. Rs. 18000
c. Rs. 20000
d. Rs. 14000

• 1.already given income of c,=Rs.2000
  let x be the income of 'B'and'c'
  2.now,income of B is=(10/100)*x=(20/100)*2000(since 10% of income B is equal to 20% of income c)
  3.therefore, solving,x=4000 i.e)B=Rs.4000
  4.likewise income of A is=(5/100)*x=(15/100)*4000(since 5% of income A is equal to 15% of income B)
  5.therefore,A=Rs.12000
  6.total of A,B and C is=2000+4000+12000=18000
• 10 years agoHelpfull: Yes(4) No(0)
• (5/100)*A=(15/100)*B-----------eqn(1)
  (10/100)*B=(20/100)*C-----------eqn(2) since income of c=2000 given
  put value of C in eqn 2 we get value of B i.e B=4000
  now put value of B in eqn 1 we get A=12000
  now A+B+C=12000+4000+2000= 18000 ans
• 6 years agoHelpfull: Yes(1) No(1)
• answer is b)18000
• 6 years agoHelpfull: Yes(1) No(0)
• a:b=3:1
  b:c=2:1
  ---------------------
  a:b:c=6:2:1
  c=1 unit =2000
  therefore,a+b+c=9 unit=9*2000=18000
• 5 years agoHelpfull: Yes(1) No(0)