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?

by BTGmoderatorDC » Tue Aug 17, 2021 9:27 pm

00:00

A

B

C

D

E

Global Stats

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

by swerve » Wed Aug 18, 2021 1:27 pm
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

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