A car driver increases the average speed of his car by 3 km hr every hour The total distance travell...........

Quantitative Aptitiude (CLAT) Average

A car driver increases the average speed of his car by 3 km/hr every hour. The total distance travelled in 7 hours if the distance covered in first hour was 30 km, is

266 km

273 km

280 km

287 km

Explanation:

We know, s = n/2(2a +(n-1)d).
so, 7/2 (30×2 +( 7-1)3) = 273 km.
Hence, option 2 is the correct answer.

By: Amit Kumar

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A car driver increases the average speed of his car by 3 km hr every hour The total distance travell...........

Explanation:

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