Time, Speed and Distance MCQs MCQs - Maths Practice | PakExamPoint

Practise Time, Speed and Distance MCQs MCQs in Maths. Attempt multiple-choice questions, check answers and revise related subtopics.

Time, Speed and Distance MCQs MCQs and revision practice

Study Time, Speed and Distance MCQs through multiple-choice questions in Maths. This subtopic contains 295 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.

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Time, Speed and Distance MCQs: questions and answer review

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251. Ali is standing 10 meters away from a tree. The distance of his eyes from his feet is 1.5 meter. Given that the distance from his eyes to the top of the tree is 15 meters, find the height of the tree

Check answer and explanation

Answer: 16.5 meters

Explanation The total height of the tree = Eye-level height + Distance from eyes to top = 1.5 m + 15 m = 16.5 meters

252. A 1000 kg vehicle is turning round a corner at 10 m/s as it travels along an arc of a circle, If the radius of the circular path is 10m, how large a force must be exerted by the pavement on the tyres to hold the vehicle in the circular path?

Check answer and explanation

Answer: 1.0 x 10^4 N

Explanation To calculate the force exerted by the pavement on the tires, we can use the centripetal force formula: Force (F) = (Mass (m) * Velocity squared (v^2)) / Radius (r) Given: Mass (m) = 1000 kg Velocity (v) = 10 m/s Radius (r) = 10 m Calculate the centripetal force (F): Using the formula, F = (m * v^2) / r, we can substitute the given values to find the force: F = (1000 kg * (10 m/s)^2) / 10 m F = 100,000 N / 1.0 x 10^4 N

253. A carpenter lays x bricks per hour for y hours and then lays x/2 bricks per hour for 2y more hours. In terms of x and y, how many bricks did he lay in total?

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Answer: 2xy

Explanation In the first y hours, the carpenter lays xy bricks. In the 2y hours thereafter, he lays (x/2)(2y) = xy bricks. Altogether, that's xy + xy = 2xy bricks.

254. A lifter loads 200 packages of grocery in truck in an hour. Whereas, a labor loads two quarters less packages in same time. How many hours it would take them to load 1500 packages if each takes 30 minutes rest after 2 hours of loading.

Check answer and explanation

Answer: 5.5 hour

Explanation Given Information: A lifter loads 200 packages per hour. A labor loads two quarters (i.e., 2/4 or 1/2) less than 200 packages per hour. 1 ​/2 × 200 = 100 So, the labor loads 200 - 100 = 100 packages per hour. Together, the lifter and labor load: 200 + 100 = 300 packages per hour They need to load 1500 packages. They take 30 minutes (0.5 hours) rest after every 2 hours of loading. Step 1: Calculate Total Loading Time Without Breaks 1500/3 00 ​ = 5 hours So, if they were working continuously, they would need exactly 5 hours . Step 2: Account for Breaks They work for 2 hours , then take a 30-minute (0.5-hour) break . In 2 hours, they load: 2 × 300 = 600 packages After 2 hours, they take a 0.5-hour break . Continuing this cycle: First 2 hours: 600 packages (then a 30-minute break ) Next 2 hours: 600 packages (then a 30-minute break ) Remaining: 300 packages, which takes 1 more hour (no need for another break). Total time including breaks: 2 + 0.5 + 2 + 0.5 + 1 = 5.5 hours Step 3: Select the Correct Answer ( b ) 5.5 hours

255. Two trains are running in opposite directions with speeds of 62 km/h and 40 km/h respectively. If the length of one train is 260 m, and they cross each other in 18 seconds, then what is the length of the other train?

Check answer and explanation

Answer: 250 meter

Explanation The relative speed of the two trains is the sum of their individual speeds, since they're moving in opposite directions: 62 km/h + 40 km/h = 102 km/h Convert the relative speed from km/h to m/s: 102 km/h x (1000 m / 3600 s) = 28.33 m/s (approximately) The time it takes for the trains to cross each other is given as 18 seconds. The total distance covered by the trains during this time is the sum of their lengths. Let's call the length of the other train "x". Then, the total distance = 260 m + x Since the relative speed is 28.33 m/s, the total distance can also be calculated as: Total distance = Relative speed x Time = 28.33 m/s x 18 s = 510 m Equate the two expressions for total distance: 260 m + x = 510 m Solve for x: x = 510 m - 260 m = 250 m

256. If 105 men can complete a work in 45 days, in how many days will 90 men complete the same work (assuming equal efficiency)?

Check answer and explanation

Answer: 52.5 days

Explanation Work = Men × Days So, 105 men × 45 days = 4725 man-days Now, if 90 men are doing the same work: 4725 man-days ÷ 90 men = 52.5 days

257. If the tire of a car makes 4000 revolutions to cover 8 km, what is the diameter of the tire?

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Answer: 0.6 m

Explanation The car goes 8 km = 8000 meters in 4000 rounds. So, one round = 8000 ÷ 4000 = 2 meters. This is the circumference of the tire. Now, Diameter = Circumference ÷ 3.14 = 2 ÷ 3.14 ≈ 0.64 m, nearly 0.6 m .

258. P and Q need 8 days to complete a work. Q and R need 12 days to complete the same work. But P, Q and R together can finish it in 6 days. How many days will be needed if P and R together do it?

Check answer and explanation

Answer: 8

Explanation Let work done by P in 1 day = p work done by Q in 1 day =q Work done by R in 1 day = r p + q = 1/8 —(1) q + r= 1/12 —(2) p+ q+ r = 1/6 —(3) (3) – (2) => p = 1/6 – 1/12 = 1/12 (3) – (1) => r = 1/6 – 1/8 = 1/24 p + r = 1/12 + 1/24 = 3/24 = 1/8 => P and R will finish the work in 8 days.

259. Asghar can do a job in 60 days And both Asghar and Babar can do in the same job in 20 days working together Babar alongs can do the same job in

Check answer and explanation

Answer: 30 days

Explanation

260. What is the distance traveled by a car which traveled at a speed of 60 km/hr for 4 hours and 15 minutes?

Check answer and explanation

Answer: 255 km

Explanation To find the distance: Speed = 60 km/hr Time = 4 hours 15 minutes = 4.25 hours (convert 15 minutes to hours) Distance = Speed × Time = 60 km/hr × 4.25 hr = 255 km

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