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The eleventh term of an AP, is 25 and its first term is -3. Find its common difference.

The eleventh term of an AP, is 25 and its first term is -3. Find its common difference.
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  • A 19/10
  • B 21/5
  • C 23/11
  • D 21/2
  • E 24/5
Correct Answer: Option E
Explanation:
a + 10d = 25
-3 + 10d = 25
d = 28/10 = 24/5

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