How many multiples of 3 are there between 10 and 90, inclusive?

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How many multiples of 3 are there between 10 and 90, inclusive?

A. 26
B. 27
C. 28
D. 29
E. 30


OA B

Source: Princeton Review

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BTGmoderatorDC wrote:
Tue Aug 17, 2021 9:27 pm
How many multiples of 3 are there between 10 and 90, inclusive?

A. 26
B. 27
C. 28
D. 29
E. 30


OA B

Source: Princeton Review
First multiple of \(3\) in the range: \(3 * 4 = 12\)

Last Multiple of \(3\) in the range: \(3 * 30 = 90\)

Total no. of multiples in the range: \(30 -4 + 1 = 27\)

Therefore, B