Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
77 views
in Mensuration by (240k points)
closed by
The radius of circular wheel is 21 m how many revolution need to make by the wheel to cover the distance of 1.980 km?
1. 12
2. 15
3. 18
4. 20

1 Answer

0 votes
by (238k points)
selected by
 
Best answer
Correct Answer - Option 2 : 15

Given:

Radius of circular wheel is 21 m and it need to cover the distance of 1.980 km

Formula used:

Circumference of circle = 2 π r

Number of revolution = Total distance covered/circumference of wheel

Calculation:

When radius of circle is 21 m

∴ Circumference of circle = 2 π × 21 = 132 m

Now, number of revolution required to cover 1.980 km

∴ Number of revolution = 1980/132 = 15

Hence, option (2) is correct

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...