R

Ravi Chauhan • 9.62K Points
Tutor III Math 

Q. Arun bought toffees at 6 for a rupee. How many for a rupee he should sell to gain 20% ?

  • (A) 3
  • (B) 4
  • (C) 5
  • (D) can't be determined
Correct Answer - Option(C)
Explanation by: Ravi Chauhan 
You can go through options.
CP = 100 / 6 = 16.66 paisa
SP = 100 / 5 = 20 paisa

Profit (%) = [( 20 - 16.66 ) / 16.66 ] X 100
= [ 3.33 /16.66 ] X 100
= ( 1 / 5 ) X 100 = 20%
Hence, option (c) is correct.

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