alleryStart learning →A car travels 240 km in 3 hours. What is its average speed in km/h?
- 60
- 70
- 75
- 80
Show answer and solution
Correct answer: D. 80
1. Speed = Distance / Time.
2. = 240 / 3.
3. = 80 km/h.
_Source: jkchrome TSD QB, p.1 — basic speed_
UIIC AO Interest — practice questions
Explore 29 free Interest questions in UIIC AO Quantitative Aptitude. Open each question or exercise to read its content, reference answers and available explanation.
Practise Interest with Quill →Interest questions and exercises with answers
Showing questions 1–29 of 29.
A car travels 240 km in 3 hours. What is its average speed in km/h?Read the answer and worked solution →Convert 72 km/h to m/s.Read the answer and worked solution →A train 120 m long passes a pole in 6 seconds. What is its speed in km/h?Read the answer and worked solution →Two trains 150 m and 100 m long run on parallel tracks in opposite directions at 60 km/h and 40 km/h. Time to cross each other:Read the answer and worked solution →A man covers a distance at 5 km/h in 6 hours. At what speed must he travel to cover the same distance in 5 hours?Read the answer and worked solution →A boat goes 24 km downstream in 3 hours and 18 km upstream in 3 hours. Speed of boat in still water:Read the answer and worked solution →If A walks at 4 km/h, he reaches office 10 min late. At 5 km/h, he is 10 min early. Distance to office:Read the answer and worked solution →A train 200 m long crosses a platform 100 m long in 12 seconds. Find the train's speed in km/h.Read the answer and worked solution →A car covers half a journey at 40 km/h and the other half at 60 km/h. Average speed for the whole journey:Read the answer and worked solution →A man can row at 8 km/h in still water. Stream flows at 2 km/h. Time to row 30 km downstream:Read the answer and worked solution →Complete the idea of a percentageRead the answer and worked solution →Ratios into percentagesRead the answer and worked solution →Order the steps of the unitary methodRead the answer and worked solution →What is the percentage taken OF?Read the answer and worked solution →True or false: percentages and their baseRead the answer and worked solution →Match each comparison to its formRead the answer and worked solution →Common percentage conversionsRead the answer and worked solution →Assertion and reasonRead the answer and worked solution →Two are true, one is notRead the answer and worked solution →Three of these are wrong. Find the one that holds.Read the answer and worked solution →Tap every correct way to express one quarterRead the answer and worked solution →Flip and pair: fraction with percentageRead the answer and worked solution →Spot the one that does not belongRead the answer and worked solution →True or false: the unitary methodRead the answer and worked solution →Ratio, fraction, or percentage?Read the answer and worked solution →Complete the comparison chainRead the answer and worked solution →Percentage of a quantityRead the answer and worked solution →Order the steps: turn a part into a percentageRead the answer and worked solution →Assertion and reason: comparisonsRead the answer and worked solution →
Worked practice questions
Convert 72 km/h to m/s.
- 15 m/s
- 20 m/s
- 25 m/s
- 30 m/s
Show answer and solution
Correct answer: B. 20 m/s
1. m/s = km/h × 5/18.
2. 72 × 5/18.
3. = 20 m/s.
_Source: jkchrome TSD QB, p.1 — unit conversion_
A train 120 m long passes a pole in 6 seconds. What is its speed in km/h?
- 60
- 72
- 80
- 90
Show answer and solution
Correct answer: B. 72
1. Speed (m/s) = 120 / 6 = 20 m/s.
2. To km/h: 20 × 18/5.
3. = 72 km/h.
_Source: jkchrome TSD QB, p.2 — train passing pole_
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