Maths Practice Question and Answer
8 Q: If two persons, with equal abilities, can do two jobs in two days then 100 persons with equal abilities can do 100 similar jobs in
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5dd6267f7780ee35515ac582- 1100 daysfalse
- 210 daysfalse
- 35 daysfalse
- 42 daystrue
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Answer : 4. "2 days "
Q: If p men working p hours per day for p days produce p units of work, then the units of work produced by n men working n hours a day for n days is
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5dd625b5a1c5834595c3b0bf- 1$${p^2}\over {n^2} $$false
- 2$${p^3}\over {n^2} $$false
- 3$${n^2}\over {p^2} $$false
- 4$${n^3}\over {p^2} $$true
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Answer : 4. "$${n^3}\over {p^2} $$"
Q: A person travels 600 km by train at 80 km/hr 800 km by ship at 400 km/ hr and 100 km by car at 50 km/hr. What is the average speed for the entire distance?
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5dd625497780ee35515ac19d- 1$$ 65{5\over 123} km.hr$$false
- 2$$ 130{10\over 23} km.hr$$true
- 3$$ 60{5\over 123} km.hr$$false
- 462 km.hrfalse
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Answer : 2. "$$ 130{10\over 23} km.hr$$"
Q: A boy rides his bicycle 10 km at an average speed of 12 km/hr and again travels 12 km at an average speed of 10 km/hr. His average speed for the entire trip is approximate:
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5dd6249aa1c5834595c3ae9c- 110.4 km / hrfalse
- 210.8 km / hrtrue
- 311.0 km / hrfalse
- 412.2 km / hrfalse
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Answer : 2. "10.8 km / hr "
Q: The speed of the current is 5 km / hour. A motorboat goes 10 km upstream and back again to the starting point in 50 minutes. The speed (in km / hour) of the motorboat in still water is:
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5dd62299a1c5834595c3a927- 120false
- 226false
- 325true
- 428false
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Answer : 3. "25 "
Q: A runner starts running from a point at 6:00 am with a speed of 8km / hr. Another racer starts from the same point at 8:30 am in the same direction with a speed of 10km / hr. At what time of the day (in P.M.) will the second racer will overtake the other runner?
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5dd621517780ee35515abc24- 18 : 00false
- 24 : 00false
- 36 : 30true
- 45 : 30false
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Answer : 3. "6 : 30 "
Q: In a 100 m race, Kamal defeats Bimal by 5 seconds. If the speed of Kamal is 18 kmph, then the speed of Bimal is
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5dd620d7c2282c484e4b219e- 115.4 kmphfalse
- 214.5 kmphfalse
- 314.4 kmphtrue
- 414 kmphfalse
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Answer : 3. "14.4 kmph "
Q: A can give 40 meters start to B and 70 meters to C in a race of one kilometer how many meters start can B give to C in a race of one kilometer?
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5dd6200fc2282c484e4b2157- 130 meterfalse
- 2$${700\over 29} meter$$false
- 3$$31{1\over 4} meter$$true
- 432 meterfalse
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