a man had enough money to purchase 16 apples or 10 mangoes.if the man buys 4 apples and 5 mangoes and is left with rupees 20,then what is the difference in the prices of an apple and a mango?pl. provide sol.

1) 2
2) 3
3) 4
4) 6

• Rs 3
  
  price of apple = Rs 5
  price of mango= Rs 8
• 11 years agoHelpfull: Yes(0) No(0)
• Let the apple be denoted as 'x' and mangoes be denoted by 'y'. AN the money he carrying be 'm'
  Now, man can purchase 16x=10y=m
  A/c to the statement, he bought 4x+5y=m-20
  4*(m/16)+5*(m/10)=m-20
  m/4+m/2=m-20
  8m-6m=160
  m=80 Rupees
  
  Therefore, for apples 16x=m
  i.e. x=80/16
  One apple cost x=5 Rs.
  
  Similarly for mangoes 10y=m
  i.e. 10y=80
  Price of 1 mango is y=8 Rs.
  
  And the difference between them is Rs.3.................Answer
• 8 years agoHelpfull: Yes(0) No(0)
• let the cost of mango and apple is x and y and money he had be d
  16y=d or 10x=d
  x-y=d/10-d/16;
  x-y=3d/80;
  4y+5x=d-20
  4*d/16+5*d/10=d-20
  d=80
  subs in the above eqn x-y=3
  ans is 3
• 7 years agoHelpfull: Yes(0) No(0)