If the wheel of a bicycle makes 560 revolutions in travelling 1.1 km, what is its radius?

A.

31.25 cm

B.

37.75 cm

C.

35.15 cm

D.

11.25 cm

• sry prev ans is wrong
  The distance covered by the wheel in 560 revolutions = 1100 m.
  Hence, the distance covered per revolution =
  1100
  560
  =
  55
  28
  metres.
  The distance covered in one revolution = circumference of the wheel.
  
  Circumference = 2πr=2×
  22
  7
  ×r
  ⇒ r= 31.25 cm.
  
• 10 years agoHelpfull: Yes(1) No(1)
• The distance covered by the wheel in 560 revolutions = 1100 m.
  Hence, the distance covered per revolution =1100/560=55/28 metres.
  The distance covered in one revolution = circumference of the wheel.
  Circumference = 2πr=2×22/7×r
  ⇒ r= 31.25 cm.
• 10 years agoHelpfull: Yes(1) No(0)
• ans is a
  as total distance travelled as the wheel having r m as radius= 2*3.14*r*560=1100 m
  or r=31.25 cm
• 9 years agoHelpfull: Yes(1) No(0)
• B. 37.75 cm
• 10 years agoHelpfull: Yes(0) No(1)