Question

If $HCF=5$, $LCM=180$ ; first number$=15$, second number=?

Answer 1

Solution:-

Let the second no. be x.

As we know that

$L.C.M.\times H.C.F.=\text{product of numbers}$

$\therefore 180\times 5=15\times x$

$\Rightarrow x=\frac{180\times 5}{15}$

$\Rightarrow x=60$

Hence, the other number is 60.