A) 9
B) 15
C) 25
D) 35
Correct Answer: D
Solution :
[d] Required number = HCF of \[(147-77),\,\text{(}252-147)\] and \[(252-77)\] = HCF of 70, 105 and 175 = 35 \[\left[ \begin{align} & 70-2\times 5\times 7,105=5\times 3\times 7 \\ & \text{and}\,\,175=5\times 5\times 7 \\ & \therefore \text{HCF}=5\times 7=35 \\ \end{align} \right]\] |
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