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  1. The LCM of two numbers is 1920 and their HCF is 16. If one of the number is 128, find the other number.
    1. 204
    2. 240
    3. 260
    4. 320
Correct Option: B

Given ,LCM = 1920 , HCF = 16 , First number = 128 , Second number = ?
As We know that ,
First number × second number = LCM × HCF

∴ Second number =
LCM × HCF
First number

∴ Second number =
1920 × 16
= 45
240



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