A) 7 : 77
B) 9 : 45
C) 11 : 55
D) 3 : 24
Correct Answer: A
Solution :
[a] As, \[5\times 7=35\] i.e. 5 multiplied with next prime number i.e. 7. Similarly, \[7\times 11=77\] i.e. 7 multiplied with next prime number i.e. 11.
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