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Krishna rides a bicycle havimg a poster"SAVE ENERGY". Her bicycle makes 2500 revolution in moving 5.5km . Find diameter of wheel. What value is depicted by Krishna

Posted by Abhishek Singh??? 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Puja Sahoo? 6 years, 10 months ago

Distance covered in 2500 revolutions = 5.5 km = 5,50,000 cm.... Distance covered in 1revolution = 5,50,000 / 2500 = 220 cm Distance covered in 1 revolution = Circumference of the wheel of the bicycle Let the radius of the wheel be 'r' cm. ⇒ 2 x 22/7 x r = 220 ⇒ r = 220 x 7/22 x 1/2 ⇒ r = 35 cm Hence, the diameter of the wheel is 70 cm.

2Thank You

Abhishek Singh??? 6 years, 10 months ago

How

1Thank You

@ Aashu 6 years, 10 months ago

0.7 m or 70 cm ..

2Thank You

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