Answered

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60 is the LCM of witch of the following pair of numbers? 12 and 18 .....10 and 30.......15 and 20......20 and 25 witch on

Sagot :

The correct pair is 15 and 20

Here, we want to select the pair of numbers which 60 is their LCM

What this mean is we want to select two numbers that 60 is the smallest multiple they have

For 12 and 18, the lcm is 36; so this is incorrect

For 10 and 30, the lcm is 30; so this is also incorrect

for 20 and 25, the lcm is 100; this is also incorrect

for 15 and 20, the lcm is 60 and this is our correct choice

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