If 3 < xy < 8 and 5 < y < 11, Which of the following represents all possible values of xy?

A    3 < xy < 11

B    8 < xy < 19

C    15 < xy < 88

D    24 < xy < 55

Solution

Correct Answer: Option C

 

x এর highest value 8 এর কম এবং y  এর highest value 11 এর কম

xy এর highest value (8×11) =88এর কম এবং y  এর highest value (3×5) = 15  এর বেশি

15 < xy < 88

 

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