Q. Man earns x% on the first Rs. 2,000 and y% on the rest of his income. If he earns Rs. 700 from Rs. 4,000 and Rs. 900 from Rs. 5,000 of income, find x %.

• When total income is Rs. 4000, a man earns x% on first Rs.2000 and y% on Rs.2000.
  
  2000x/100 + 2000y/100 = 700
  
  When total income is Rs. 5000, a man earns x% on first Rs.2000 and y% on Rs.3000.
  
  2000/100 + 3000y/100 = 900
  
  The equations can be simplified to
  
  x + y = 35 and 2x + 3y = 90
  
  Solving these two equations simultaneously, x = 15%.
• 8 years agoHelpfull: Yes(12) No(0)
• Diff of earning on Rs 1000 @ y% = 900-700= Rs 200
  so y = 20 %
  then earning on first Rs 2000 @ x% = 700- 2000*20/100 = Rs 300
  so x= 300*100/2000 = 15%
  
  so x= 15% and y = 20%
• 11 years agoHelpfull: Yes(6) No(1)
• x= 1.5% and y = 2%
• 11 years agoHelpfull: Yes(2) No(5)