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Question

How many no.Between 200 and 600 are divisible by 4, 5, and 6 ?

Options:
A .  2
B .  4
C .  6
D .  8
Answer: Option C

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4 Comments

L.c.m 4'5'6=60
Then number be
240,300,360,420,480,540
Hence the number is 6
Lcm of 4,5 and 6 = 60
For any number to be divisible by all three numbers, it must be divisible by 60. There are 8 such numbers between 200 and 600- 120, 180, 240, 300, 360, 420, 480, 540.
The nos between 200-600 ,,to be div by 4,5,6
The last no must be obviously 0
Hence b/w 200-600 300
200-300 240 and revrsng 2digts 420
300-420 360
400-500 ,450 and revrsng hundres n tens dgt 540
The nos are 300,240,420,450,360,480

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