Maths Number System
How many numbers from 300 to 650 are completely divisible by both 5 and 7?
300 से 650 तक ऐसी कितनी संख्याएँ हैं जो 5 और 7 दोनों से पूर्णतः विभाज्य हैं?
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A
(a) 10
B
(b) 11
C
(c) 8
D
(d) 12
Correct Answer: Option A
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Explanation / व्याख्या:
LCM(5,7)=35. ⌊650/35⌋-⌊300/35⌋=18-8=10.
LCM(5,7)=35। ⌊650/35⌋-⌊300/35⌋=18-8=10।
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