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UPSC Prelims

Mathematics

Theme:

Number System / संख्या पद्धति

Q72 2016, Number System

If R and S are different integers both divisible by 5, then which of the following is not necessarily true?

यदि R और S दोनों अलग-अलग पूर्ण संख्याएँ हों और दोनों 5 से विभाज्य हों तो इनमें से कौन-सा अनिवार्यतः सही नहीं है ?

Explanation Please wait..

If R and S are multiple of 5, then R + S may or may not be divisible by 10.

For example, if R = 20 and S = 15. We will see that only (b) is correct.

व्याख्या Please wait..

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