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Class 10 math (India)

Course: Class 10 math (India) > Unit 5

Lesson 2: Common difference of an AP
Math
Class 10 math (India)
Arithmetic progressions
Common difference of an AP
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Common difference (advanced)

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Problem

We have an arithmetic progression with common difference of 7.
Given that, a, start subscript, start text, 3, end text, end subscript, plus, a, start subscript, start text, 9, end text, end subscript, equals, 28
Find the value of the 5, start superscript, start text, t, h, end text, end superscript term.
a, start subscript, start text, 5, end text, end subscript, equals
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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