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IF A=1-10+3-12+5-14+7+… upto 60 terms , ...

IF `A=1-10+3-12+5-14+7+…` upto 60 terms , then what is the value of A?

A

`-360`

B

`-310`

C

`-240`

D

`-270`

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Knowledge Check

  • If A= (1)/(1 xx 2) + (1)/(1 xx 4) + (1)/(2 xx 3) + (1)/(4 xx 7) + (1)/(3 xx 4) + (1)/(7 xx 10) …..upto 20 terms, then what is the value of A?

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    `6179/15275`
    B
    `6070/14973`
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    `7191/15174`
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    `5183/16423`

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