Question

The product of two-digit numbers is 765& their hcf is 3.What is their lcm?

Answer 1

Product of two-digit number =lcm*hcf

765=3*lcm

Lcm=765/3=255

Answer 2

$1st \: no. \times 2nd \: no. = hcf \times lcm \\ 765 = 3 \times lcm \\ lcm = 765 \div 3 \\ lcm = 255$