quantumliner wrote:
genxer123 wrote:
GTExl wrote:
The product of two numbers is 2028 and their HCF is 13. What are the number of such pairs?
A. 4
B. 3
C. 2
D. 1
E. 5
Kudo please if you liked the ques.
A. 4
B. 3
C. 2
D. 1
E. 5
Kudo please if you liked the ques.
13 * 156 = 2,028
26 * 78 = 2,028
39 * 52 = 2,028
That's three pairs. I keep testing GCF because OA is two pairs... What am Imissing?
13 is the highest common factor. In the combination 26 * 78, HCF is 26. Hence this combination is out.
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