| (i) 3 is a factor of 32. (ii) 20 and 32 have 3 common factors. (iii) 63 has only 2 factors other than1 and itself (iv) 7 is a factors of 46. |
A) (i) only
B) (ii) only
C) (i) and (iii) only
D) (i) and (iv) only
Correct Answer: B
Solution :
Common factors of 20 and 32 are 1, 2 and 4 which are 3 in number.
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