A television producer sold 150 televisions in a special 6-day sale offer. During the sale offer, each day the company sold 6 more televisions than what was sold the day before. How many televisions were sold on the 6th day?

A 40
B 42
C 45
D 50

Correct Answer: 40

Sum = n/2 [ 2a + ( n – 1) d ] বা, 150 = 6/2 [ 2 × x + ( 6 - 1) × 6 ] বা, 300 = 6 [ 2x + 30 ] বা, 300 = 12x + 180 বা, x = 10 Sell at 6th day = 10 + ( 6 - 1) 6 = 10 + 30 = 40
Bissoy MCQ
#গণিত #লাভ-ক্ষতি (Profit and loss) #Agrani bank Ltd #Agrani bank Ltd - Officer 04.07.2008

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