Question
The speed of a car increases by 2 kms after every one hour. If the distance travelled in the first one hour was 35 kms, what was the total distance traveled in 12 hours?
Answer: Option C
- Total distance travelled in 12 hours = (35 + 37 + 39 + ...... upto 12 terms) This is an A.P. with first term,
a = 35, number of terms, n = 12, common difference, d =2.
Required distance =12/2 (2 x 35 + (12 - 1) x 2) = 6(70 + 22) = 552 kms
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- Total distance travelled in 12 hours = (35 + 37 + 39 + ...... upto 12 terms) This is an A.P. with first term,
a = 35, number of terms, n = 12, common difference, d =2.
Required distance =12/2 (2 x 35 + (12 - 1) x 2) = 6(70 + 22) = 552 kms
Was this answer helpful ?
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