CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
SUI GENERIS

· started a discussion

· 1 Months ago

Short Method (Question: 324084.0 )

speed of smaller wheel : speed of larger wheel = 1:2
1980/10=198 cms/sec
198/(1+2)= 66 cms/sec
66*1=66 cms/sec=speed of smaller wheel

Question:

Wheels of diameter of 7 cm and 14 cm start rolling simultaneously from A and B which are 1980 cm apart towards each other in opposite directions. Both of them make the same number of revolutions per second. If both of them meet after 10 seconds, what is the speed of the smaller wheel?

Options:
A)

60 cm per sec

B)

64 cm per sec

C)

66 cm per sec

D)

74 cm per sec

Solution:

Ans: (c)

  

Knowledge Expert

· commented

· 1 Months ago

Dear Student
Your Shortcut method is correct.
Thank You for sharing it with us.
Regards
Team TopRankers
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions