An exhibition was conducted for 4 weeks. The number of tickets sold in 2nd work week was increased by 20% and increased by 16% in the 3rd work week but decreased by 20% in the 4th work week. Find the number of tickets sold in the beginning, if 1392 tickets were sold in the last week Choose the correct option.
A) 6 B) 35 C) 120 D) 1250 E) 740
Answer: 1250   Explanation:   let initially A ticket has been sold.   So now in 2nd week 20% increases so   A × 120100120100   In 3rd week 16% increases so   A × 120100120100 × 116100116100   In 4th week 20% decrease so   A × 120100120100 × 116100116100 × 120100120100 = 1392   A = 1250   Answer:1250
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An exhibition was conducted for 4 weeks. The number of tickets sold in 2nd work week was increased by 20% and increased by 16% in the 3rd work week but decreased by 20% in the 4th work week. Find the number of tickets sold in the beginning, if 1392 tickets were sold in the last week