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An exhibition was conducted for 4 weeks. The number of tickets sold in 2nd week was increased by 20% and increased by 16% in the 3rd week but decreased by 20% in the 4th week. Find the number of tickets sold in the beginning, if 1392 tickets were sold in the last week ?

1250
2250
1300
1200
Explanation:
Let initially A tickets have been sold.
So now in 2nd week 20% increases so
A × $\dfrac{120}{100}$
In 3rd week 16% increases so
A × $\dfrac{120}{100}$× $\dfrac{116}{100}$umber.
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