Question 2 If 𝜋 is taken as 22/7, the distance (in metres) covered by a wheel of diameter 35 cm, in one revolution, is (A) 2.2 (B) 1.1 (C) 9.625 (D) 96.25
Diameter = 35 cm
Radius = 𝟑𝟓/𝟐 cm
Now,
Distance covered in one revolution = Circumference of wheel
= 2𝜋r
= 2 × 22/7 × 35/2
= 110 cm
Converting into metres
=110/100 m
= 1.1 m
So, the correct answer is (B)
Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.
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