Fifteen movie theatres average 600 customers per theatre per day. If six of theaters close down but

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Fifteen movie theatres average $600$ customers per theatre per day. If $six$ of the theaters close down but the total theater attendance stays the same, then the average daily attendance per theatre among the remaining theaters is

A

$900$

B

$1000$

C

$1100$

D

$1200$

Solution

Sum of $15$ theater attendance $=600 \times 15=9000$

Sum of $6$ theater attendance $=600 \times 6=3600$

There $3600$ persons should be splitted to $9$ theaters

$\frac{3600}{9}=400$

: Average daily attendance/theater among the remaining theater $=600+400=1000$

Standard 13

Quantitative Aptitude

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