Class 8 Mathematics revision: Speed, time and distance questions and answers

Class 8 Mathematics revision: Speed, time and distance questions and answers

Lessons (28)     SHARE

• 1.    Njogu and Kaliech set off from their school to the market. Njogu cycled at a speed of 18km/h and took 40 minutes to reach the market. Kaliech walked and took 2 hours to cover the same distance. What was Kaliech’s speed in km/h? A. 6 B. 12 C. 9 D. 13.5
  4m 13s

• 2.    A cyclist set out to travel from town N to town P. After travelling for 1 hour 30min he had a tyre puncture, which took him 30 minutes to repair. He then continued with the journey for 50 minutes. If his average speed for the whole journey was 18km/h, how far is town P from town N? A. 32.6km B. 37.8km C. 42km D. 51km
  5m 16s

• 3.    Kagendo made a 150kilometre journey. For the first 90km she used a bus travelling at an average speed of 60km/h and for the rest of the journey she took a matatu travelling at an average speed of 90km/h. how long did the journey take? A. 1h 30min B. 1h 40min C. 2h 10min D. 2h 30min
  5m 25s

• 4.    A cyclist left home at 11.15 a.m. for a market 50km away. He cycled at an average speed of 15km/h. At what time did he reach the market? A. 3.20 am B. 3.20 pm C. 2.35 am D. 2.35 pm
  3m 7s

• 5.    A bus left town Y for town Z, a distance of 80 kilometers, at 8.30 am. For the first 30 minutes, it travelled at 50km/h. It travelled the remaining distance at 66km/h. At what time did the bus reach town Z? A. 9.10 am B. 9.20 am C. 9.50 am D. 10.12 am
  4m 42s

• 6.    Rono can run at an average speed of 24km/h. He started the 800m race at 4.00 pm. At what time did he finish the race? A. 4.20 pm B. 5.00 pm C. 4.02 pm D. 4.24 pm
  3m 36s

• 7.    During a competition, Kamau took 1hour to cycle from town E to town F at an average speed of 18km/h. He cycled back to town E at an average speed of 9km/h. What was his average speed in km/h for the round trip? A. 12 B. 27 C. 13.5 D. 18
  3m 11s

• 8.    Opondo walked from his home to the market at an average speed of 5km/h and took 2 hours 24 minutes. He returned home at an average speed of 4 km/h. How long did he take to travel to the market and back? A. 2h 40min B. 5h 20min C. 4h 48min D. 5h 4min
  7m 47s

• 9.    Two drivers, kamau and Odongo drove from Nairobi to Maseno, a distance of 480km. They started the journey at 7.00am. Kamau drove at a constant and reached Maseno at 1.00pm. Odongo drove at an average speed of 60km/h. How far from Maseno was Odongo when Kamau arrived? A. 120km B. 160km C. 360km D. 420km
  6m 2s

• 10.    Ahmed left home at 9.20am for Nairobi a distance of 168km. After driving for one hour he rested for 40 minutes. He then continued with his journey and reached Nairobi 12 noon. What was his average speed for the journey in km/h? A. 70km/h B. 63km/h C. 60km/h D. 84km/h
  3m 8s

• 11.    Muthoni left home at 7.00 am for the market, a distance of 7.2km. She reached the market at 8.20 am. What was her average speed in metres per second? A. 1 m/s B. #1frac{1}{2}# m/s C. #1frac{1}{3}# m/s D. #5frac{2}{5}# m/s
  6m 31s

• 12.    Ahmed travelled by bus from 12 noon to 3pm for 180 kilometres. He then travelled for one hour in a car whose average speed was 20km/h more than the bus. What was his average speed in km/h for the whole journey? A. 80 B. 70 C. 65 D. 50
  5m 20s

• 13.    A motorist left home at 10.00 am and travelled to Nairobi a distance of 225km. He travelled at an average speed of 90km/h. At what time did he reach Nairobi? A. 12.30pm B. 12.50pm C. 2.30pm D. 12.30 am
  3m 5s

• 14.    A car travelling from town A to town b at an average speed of 80km/h took 54 minutes. Another car took 40 minutes to travel the same distance. What was the difference in their speeds in km/h? A. 8 B. 28 C. 36 D. 108
  4m 43s

• 15.    A motorist covers 3 km in every #1frac{3}{4}# minutes. How many kilometres will he have covered from 8.19 am to 9.08am? A. 28 B. 84 C. 147 D. #257frac{1}{4}#
  3m 44s

• 16.    A motorist left town A at 8.15 am for town b, a distance of 330km. He covered the first 112km in #1frac{1}{3}# hours and stopped for 20 minutes to fuel. He continued with the journey arriving in town B at 11.55 am. What was the average speed for the whole journey? A. 109km/h B. 99km/h C. 90km/h D. 84km/h
  4m 44s

• 17.    Mambo took 30 minutes to cycle from home to the market at an average speed of 5 metres per second. After staying at the market for 20 minutes, he cycled back and took 25 minutes to reach home. What was the average speed in metres per second for the whole journey? A. #5 frac{5}{11}#m/s B. 4m/s C. 2m/s D. 6m/s
  5m 21s

• 18.    A motorists traveling at an average speed of 84km /h took 2 hours 30 minutes to travel from town M to town N. She then took 3 hours and 20 minutes to travel back to town M. what was the average speed for the whole journey? A. 36km/h B. 63km/h C. #73frac{1}{2}# km/h D. 72km/h
  6m 4s

• 19.    A motorist started on a journey of 250km at 6.30 am, travelling at an average speed of 100km/h. After travelling for 150km, the car got a puncture and took him 30 minutes to change the wheel. He then continued with the rest of the journey at an average speed of 80km/h. At what time did he reach his destination? A. 9.15 am B. 9.45 am C. 9.30 am D. 9.55 am
  6m 32s

• 20.    In a relay race Obongo ran 600m, which is#frac{2}{5}# of the race, in 3 minutes. Kyalo took 5 minutes to complete the rest of the race. What was the average speed for the whole race in m/s? A. 3 B. 3#frac{1}{8}# C. 3#frac{1}{6}# D. 3#frac{1}{3}#
  7m 16s

• 21.    A motorists driving at 60km/h was expected to arrive on time in town A, 200km away. After driving for one hour, the car got a puncture and took 20 minutes to change the wheel. At what speed in km/h did he drive after repairing the puncture if he had to arrive at the expected time. A. 105 B. 100 C. 70 D. #52frac{1}{2}#
  4m 57s

• 22.    Adhiambo left home and cycled for 1#frac{1}{2}# hours at an average speed of 8km/h. She rested for 30 minutes and continued with the journey for 2 hours at an average speed of 7#frac{1}{2}# km/h. What was the average speed for the whole journey? A. 27km/h B. 7#frac{5}{7}# km/h C. 7#frac{3}{4}# km/h D. 6#frac{3}{4}# km/h
  6m 27s

• 23.    A car travelled 216km at an average speed of 48km/h. On the return journey the average speed increased to 72km/h. Calculate the average speed, in km/h for the whole journey? A. 57.6 B. 60 C. 28.8 D. 68.6
  5m 34s

• 24.    Kibet left school by bicycle at 8.00 am and took 1#frac{1}{2}# hours to reach the market 20km away. Akinyi left the school for the market by car at 8.30 am. The average speed of the car was 80km/h. What was the difference between their arrival times? A. 1 hour 15 minutes B. 45 minutes C. 30 minutes D. 15 minutes
  5m 19s

• 25.    Senteu left home at 6.00 am for school which is 8km away. He cycled at a speed of 6km/h. After cycling for 4km the bicycle had a puncture which took him 15 minutes to repair. He continued cycling at the same speed. At what time did he arrive at school? A. 6.40am B. 6.55 am C. 7.20 am D. 7.35 am
  0m 0s

• 26.    Kuria takes 2h 15 minutes to cycle from home to the market at an average speed of 8km/h. He cycles from the market back home at an average speed of 12km/h. How much time does Kuria take to cycle from home to the market and back? A. 3#frac{3}{4}# hours B. 3#frac{3}{5}# hours C. 1#frac{1}{2}# hours D. 5#frac{5}{8}# hours
  4m 35s

• 27.    A train timetable for station J to O is given below. How long does the train take from station L to N? A. 6h 40min B. 6h 10min C. 5h 50min D. 5h 20min
  2m 11s

• 28.    Rono cycled from town R at an average speed of 72km/h and took 3 hours 30 minutes to reach town S. Kepha cycled the same distance and took 4 hours. At what average speed was Kepha cycling? A. 18km/h B. #33frac{3}{5}# km/h C. 63km/h D. 252km/h
  2m 43s

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