Question

If the HCF and LCM of 48 and 56 are respectively h and l, then the value of l÷h is—
a)40
b)42
c)36
d)44

Answer 1

48=8*6

56=8*7

so 8 is the highest factor which is common between 48 and 56.

h=8.

LCM=Product of the numbers/HCF

=48*56/8

=48*7

=336.

So l/h

=LCM/HCF

=336/8

=42.

ANSWER: option(b)

Hope it helps

Answer 2

LCM(42,56)=336

HCF(42,56)=8

GIVEN:HCF=h=8

LCM=l=336

l/h=336/8

=42

Hence (B) is the correct option