Model 1 Basic Time & Distance using formula Section-Wise Topic Notes With Detailed Explanation And Example Questions
MOST IMPORTANT quantitative aptitude - 5 EXERCISES
The following question based on time & distance topic of quantitative aptitude
(a) 11 minutes 20 sec
(b) 13 minutes
(c) 13 minutes 20 sec
(d) 10 minutes
The correct answers to the above question in:
Answer: (b)
Using Rule 1,
Speed of train = $\text"Distance"/ \text"Time"$
= $10/{12/60}$ kmph = ${10 × 60}/12 = 50$ kmph
New speed = 45 kmph
Required time = $10/45$ hour
= $2/9 × 60$ minutes = $40/3$ minutes
= 13 minutes 20 seconds
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Read more basic problems formulas Based Quantitative Aptitude Questions and Answers
Question : 1
A man walking at the rate of 5 km/hr. crosses a bridge in 15 minutes. The length of the bridge (in metres) is :
a) 1250
b) 1000
c) 750
d) 600
Answer »Answer: (a)
Using Rule 1,
Speed of the man = 5km/hr
= $5 × 1000/60$ m/min = $250/3$ m/min
Time taken to cross the bridge
= 15 minutes
Length of the bridge
= speed × time
= $250/3 × 15$m = 1250m
Question : 2
A car goes 10 metres in a second. Find its speed in km/hour.
a) 36
b) 48
c) 32
d) 40
Answer »Answer: (a)
Using Rule 1,
Speed of car = 10 m/sec.
Required speed in kmph
=${10 × 18}/5 = 36$ km/hr
Question : 3
A train is moving with the speed of 180 km/hr. Its speed (in metres per second) is :
a) 50
b) 30
c) 40
d) 5
Answer »Answer: (a)
Using Rule 1,
Speed = 180 kmph
= ${180 × 5}/18$ m/sec = 50 m/sec
[Since, 1 km/hr = $5/18$ m/s]
Question : 4
The speed of a bus is 72 km/hr. The distance covered by the bus in 5 seconds is
a) 74.5 m
b) 50 m
c) 60 m
d) 100 m
Answer »Answer: (d)
Using Rule 1,
Speed of bus = 72 kmph
= $({72 × 5}/18)$ metre/second
= 20 metre/second
∴ Required distance
= 20 × 5 = 100 metre
Question : 5
An aeroplane covers a certain distance at a speed of 240 km hour in 5 hours. To cover the same distance in 1$2/3$ hours, it must travel at a speed of :
a) 720 km./hr.
b) 600 km./hr.
c) 360 km./hr.
d) 300 km./hr.
Answer »Answer: (a)
Using Rule 1,
Let the required speed is x km/ hr
Then, $240 × 5 = 5/3 × x$
x = 720 km/hr.
GET time & distance PRACTICE TEST EXERCISES
Model 1 Basic Time & Distance using formula
Model 2 Vehicles in x/y of its usual speed
Model 3 Problems on average speed
Model 4 Time & Distance with Ratios
Model 5 Problems with Races
time & distance Shortcuts and Techniques with Examples
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Model 1 Basic Time & Distance using formula
Defination & Shortcuts … -
Model 2 Vehicles in x/y of its usual speed
Defination & Shortcuts … -
Model 3 Problems on average speed
Defination & Shortcuts … -
Model 4 Time & Distance with Ratios
Defination & Shortcuts … -
Model 5 Problems with Races
Defination & Shortcuts …
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