Question

18.1f
18.1f two numbers are equal then
a. Their LCM is equal to their H.C.F.
b. Their L.C.M.is less than their H.C.F.
c. Their L.C.M. is equal to two times their H.C.F.
d. None of these.
cm​

Answer 1

EXPLANATION

Friend i think your option (a) is correct

PROVE

Let two equal numbers 10 and 10

Then, Prime Factorisation of 10 and 10 is

10 = 2 × 5

10 = 2 × 5

HCF(10 , 10) = 2 × 5 = 10

LCM(10 , 10) = 2 × 5 = 10

Hence, their H.C.F and L.C.M are

equal. Option (a)

So, this is your answer.Hope it helps.