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- The speed of a car increases by 2 kms after every one hour.
Question 1:
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?
A. 456 kms
B. 482 kms
C. 552 kms
Feedback 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
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
D. 556 kms
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