The speed of a bus increases by 2 kmph after every one hour. If the distance traveled in the first one hour was 35 km, what was the total distance traveled in 12 hours?
550 km
552 km
402 km
452 km
Explanation:
Distance traveled in 1st hour =35 km
Speed of the bus increases by 2 kmph after every one hour.
Hence,distance travelled in 2nd hour =37 km
distance travelled in 3rd hour =39 km
and so on
Total distance travelled=[35+37+39+⋯(12 terms)]
=12/2[2×35+(12−1)2]
=6(70+22)
=6×92
=552
Distance traveled in 1st hour =35 km
Speed of the bus increases by 2 kmph after every one hour.
Hence,distance travelled in 2nd hour =37 km
distance travelled in 3rd hour =39 km
and so on
Total distance travelled=[35+37+39+⋯(12 terms)]
=12/2[2×35+(12−1)2]
=6(70+22)
=6×92
=552