sumanth mother asks him to buy 100 pieces of sweets worth rs 100 the sweet shop has three kinds of sweets kajubarfi,gulabjamun,and sandesh,kajubarji cost rs 10/- per piece,gulabjamun cost rs 3/-per piece nd kajuberfi costs 50 paise per piece.If sumith decides to buy at least one sweet of each type,how many gulabjamuns should he buy?

• Let the number of Kajubarfis, Gulabjamuns and Sandeshs be k,g and s
  
  Total number of pieces should be 100
  => k + g + s = 100 ---(1)
  
  Net worth of all sweets to be bought is Rs 100
  => 10k + 3g + 0.5s =100
  => 20k + 6g + s = 200 ---(2)
  now
  (2) – (1) => 19k + 5g = 100
  Here two terms are added to get 100. Second term 5g is a multiple of 5.
  The only possible value of k is 5
  For this value of k, we get g = 1
  
  so no.of gulabjamun is 1
• 12 years agoHelpfull: Yes(3) No(2)
• Dear prashanthi,
  plz check the question.
• 12 years agoHelpfull: Yes(1) No(1)