Question

20 or 25 ka lcm kitna hoga

Answer 1

20 = 2×2×5
25= 5×5

TAKING HIGHEST POWER OF EACH TERM IN A NUMBER i.e. 2×2 & 5×5

LCM of 20 & 25 = 5×5×2×2
=>>>>>> 100

ANSWER = 100

Answer 2

Given:
one number= 20
second number= 25

L.C.M (Least common multiple)

L.C.M OF 20 & 25

5 \ 20                        5 \25
 2  \4                          5 \ 5
2   \ 2                               1 
        1

20= 5*2*2= 5× 2²
25= 5*5= 5²

now take the highest exponent from each number.

L.C.M= 5*5*2*2 = 100
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L.C.M of 20 & 25 is 100

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Hope this will help you