Which among the following is/are TRUE. a. 7 is a factor of 91. b. 13 is a multiple of 117. c. 21 is a multiple of 7.?

a and b
a and c
b and c
a, b and c

LohaHridoy

5 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 2 : a and c

Given:

The numbers are 91, 13, and 21

Concept used:

We have to find the factors of these three numbers to choose the correct option.

Calculation:

Prime factors of 91 = 7 × 13

Prime factors of 13 = 13

Prime factors of 21 = 3 × 7

Therefore, 7 is a factor of 91, and 21 is a multiple of 7.

But it is not possible that 13 is a multiple of 117. (Also 13 is smaller than 117)

∴ From the following statements, (a) and (c) are TRUE. Hence, option 2 is correct.

5 views Answered 2022-09-04 04:29

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