Math, asked by anikkamenor9756, 10 months ago

Find the sum of all odd no.between 70 and 170

Answers

Answered by bktbunu
1

Answer:

6000

Step-by-step explanation:

sum of all odd no.between 70 and 170

= 71 + 73 + 75 + ... + 169 (50 number of terms)

= 50×{2×71+(50-1)×2}/2

= 25×(142+98)

= 25×240

= 6000

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