Q. The HCF of two numbers is 96 and their LCM is 1296. If one of the number is 864, then the other number is :
Answer: 144
Notes: First Numebr $latex \times$ Second Number = HCF $latex \times$ LCM => 864 $latex \times$ Second Number = 96 $latex \times$ 1296 $latex => Second\ Number = \frac{96\times 1296}{864} = 144&s=1$ Hence option [D] is correct answer.

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