Question

what is the LCM of 200,220,240​

Answer 1

$200 = 2 \times 2 \times 2 \times 5 \times 5 \\ 220 = 2 \times 2 \times 5 \times 11 \\ 240 = 2 \times 2 \times 2 \times 2 \times 3 \times 5$

Now,

$Common \: \: factors \: \: in \: \: these \: \: \\ three \: \: are \: \: 2, \: 2, \: and \: 5.$

Thus,

${\boxed{ \boxed{\large{ \red{LCM = 2 \times 2 \times 5}}}}} \\ {\boxed{ \boxed{\large{ \red{ \: \: \: \: \: \: \: \: \: \: \: \: \: = 20}}}}}$

$<marquee>MARK BRAINLIEST$

Answer 2

LCM of 200= 2×2×2×5×5

LCM of 220= 2×2×5×11

LCM of 240= 2×2×2×2×3×5

Common factor of 200,220,240

LCM= 2×2×2×2×3×5×5×11= 13200

1 hour= 60 mins

13200÷60= 220

220÷60= 3 hour 40 mins