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1. Real Numbers
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Q6 of 114 Page 38

The product of two numbers is 1600 and their HCF is 5. The LCM of the numbers is

We know that product of numbers = LCM × HCF

So, 1600 = 5 × LCM


And ∴ LCM = 320.

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4

LCM of (23× 3 × 5) and (24× 5 × 7) is

5

The HCF of two numbers is 27 and their LCM is 162. If one of the numbers is 54, what is the other number?

7

What is the largest number that divides each one of 1152 and 1664 exactly?

8

What is the largest number that divides 70 and 125, leaving remainders 5 and 8 respectively?

Questions · 114
1. Real Numbers
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