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Question
If `4/5 `, a, 2 are in AP, find the value of a.
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Solution
Rearrange the equation to solve for a:
`2a = 2 + 4/5`
`2a = 10/5 + 4/5`
`2a = 14/5`
`a = 14/10`
`a = 7/5`
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