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Question

Express 93 as the sum of 9 consecutive odd numbers.

A
73, 75, 77., 79, 81, 83, 85, 87, and 89.
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B
81, 83, 85, 87, 89,91, 93,95 and 97
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C
71, 73, 75, 77, 79, 81, 83, 85 and 87
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D
91, 93, 95, 97, 99, 101, 103, 105 and 107
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Solution

The correct option is A 73, 75, 77., 79, 81, 83, 85, 87, and 89.
Here, the sum of 9 consecutive odd numbers should be equal to 93.
To find the odd numbers whose sum is 93, we first divide 93 by 9.
939=92=81
Since 81 is an odd number, it would be middle number of the series. The other odd numbers would be the 4 odd ones before and after 81.
So the odd numbers whose sum gives 93 are 73, 75, 77., 79, 81, 83, 85, 87, and 89.

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