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Question

X kilograms of Maida or all-purpose flour worth Rs. 31 per kg be mixed with 36 kilograms Atta flour worth Rs. 43 per kg, such that the mixture when sold at Rs. 44 per kg gives a profit of 10%. Find X?

  • 12
  • 15
  • 20
  • 10
Answer- A

SP of the mixture = 44, Profit =10%, Then CP = SP*100/110

44*100/110 = Rs. 40 per kg

Using alligation rule, the required ratio =

     31                                                            43

                                        40

     3                                                               9

 

=3:9 = 1:3

If 36 kg is 3 part then 1 part is 36*1/3 =12.