Maths Number System
How many numbers between 300 and 700 are divisible by 2, 3 and 7 together?
300 और 700 के बीच कितनी संख्याएँ 2, 3 और 7 से एक साथ विभाज्य हैं?
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A
(a) 7
B
(b) 9
C
(c) 11
D
(d) 12
Correct Answer: Option B
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Explanation / व्याख्या:
LCM(2,3,7)=42. ⌊700/42⌋-⌊300/42⌋=16-7=9.
LCM(2,3,7)=42। ⌊700/42⌋-⌊300/42⌋=16-7=9।
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