Model 2 Vehicles in x/y of its usual speed Practice Questions Answers Test with Solutions & More Shortcuts
time & distance PRACTICE TEST [5 - 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
Question : 11 [SSC CGL Tier-I 2016]
A car moving in the morning fog passes a man walking at 4 km/ h. in the same direction. The man can see the car for 3 minutes and visibility is upto a distance of 130 m. The speed of the car is :
a) 5 km. per hour
b) 7 km. per hour
c) 6$3/5$ km. per hour
d) 7$3/5$ km. per hour
Answer »Answer: (c)
Speed of car = x kmph.
Relative speed = (x - 4) kmph.
Time = 3 minutes
= $3/60$ hour = $1/20$ hour
Distance = 130 metre
= $130/1000$ km. = $13/100$ km.
Relative speed = $\text"Distance"/ \text"Time"$
$x - 4 = 13/100$ × 20
5x - 20 = 13
5x = 20 + 13 = 33
$x = 33/5 = 6{3}/5$ kmph.
Question : 12 [SSC CGL Prelim 2002]
A man with $3/5$ of his usual speed reaches the destination 2$1/2$ hours late. Find his usual time to reach the destination.
a) 4$1/2$ hours
b) 3$3/4$ hours
c) 3 hours
d) 4 hours
Answer »Answer: (b)
$3/5$ of usual speed will take $5/3$ of usual time.
[Since, time & speed are inversely proportional]
$5/3$ of usual time = usual time + $5/2$
$2/3$ of usual time = $5/2$
usual time = $5/2 × 3/2$
= $15/4 = 3{3}/4$ hours.
Using Rule 8,If an object travels certain distance with the speed of $A/B$ of its original speed and reaches its destination 't' hours before or after, then the taken time by object travelling at original speed isTime = $\text"A"/\text"(Difference of A and B)"$ × time (in hour)
Here, A = 3, B = 5, t = 2$1/2$
Usual time = $\text"A"/\text"Diff of A and B"$ × time
= $3/{5 - 3} × 2{1}/2$
= $3/2 × 5/2$
= $15/4 = 3{3}/4$ hours
Question : 13 [SSC CHSL 2015]
The speed of a car is 54 km/hr. What is its speed in m/sec?
a) 150 m/sec
b) 194.4 m/sec
c) 19-44 m/sec
d) 15 m/sec
Answer »Answer: (d)
1 kmph = $5/18$ m/sec
54 kmph = $5/18 × 54$
= 15 m/sec.
Question : 14 [SSC CGL Tier-1 2011]
Walking $6/7$th of his usual speed, a man is 12 minutes late. The usual time taken by him to cover that distance is
a) 1 hour 20 minutes
b) 1 hour 15 minutes
c) 1 hour 12 minutes
d) 1 hour
Answer »Answer: (c)
Time and speed are inversely proportional.
Usual time × $7/6$ - usual time
= 12 minutes
Usual time × $1/6$ = 12 minutes
Usual time = 72 minutes
= 1 hour 12 minutes
Using Rule 8,
Here, A = 6, B = 7, t = $12/60 = 1/5$ hrs.
Usual time= $\text"A"/\text"Diff of A and B"$ × time
= $6/{(7 - 6)} × 1/5 = 1{1}/5$ hrs.
= 1 hrs. 12 minutes
IMPORTANT quantitative aptitude EXERCISES
Model 2 Vehicles in x/y of its usual speed Shortcuts »
Click to Read...Model 2 Vehicles in x/y of its usual speed Online Quiz
Click to Start..time & distance Shortcuts and Techniques with Examples
-
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 …
quantitative aptitude CATEGORIES
RECENT BLOGS
Recently Added Subject & Categories For All Competitive Exams
Ratio and Proportion Questions with Solutions, IBPS Clerk
New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Top Analogy Reasoning Ability For IBPS Clerk Prelims 2024
Most Important Analogy based Verbal Reasoning Multiple choice questions and answers practice quiz series PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
SSC STENO: Mensuration Area & Volume Questions Test PDF
Free Mensuration Area and Volume Aptitude-based Practice multiple questions with solutions, Quiz, Full Mock Test & PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »
SSC STENO: Speed Time and Distance MCQ Questions Test PDF
Free Time and Distance Aptitude-based Practice multiple questions with solutions, Quiz series, Mock Test & Download PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »