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Abhijeet Kumar

· started a discussion

· 1 Months ago

Wrong Answer (Question: 257157.0 )

How LCM OF 300,400,480,720 will come 720?
The LCM will be 1440.
n why the answer is divided by 3600, can u plz explain?

Question:

Four players started running simultaneously from a point on a circular track. They took 300 seconds, 400 seconds, 480 seconds and 720 seconds to complete one round. After how much time do they meet at the starting point for the first time ?

Options:
A)

8 hr

B)

2 hr

C)

4 hr

D)

3 hr

Solution:

Ans: (b)

  

Manoj Meena

· commented

· 1 Months ago

1440is not divisible by 400

ankur

· commented

· 1 Months ago

bhai ye second ko hours me convert krne ke liye kiya hai divide 3600 se

shrikant singh

· commented

· 1 Months ago

hours me convert krne ko

Abhinav Gupta

· commented

· 1 Months ago

lcm galat nikala ha tumne...check kro...1440 se 300 and 400 divisible ni ha.
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