The radii of the front wheel and the rear wheel of a bike are 14 cm and 21 cm respectively. Rahul puts a red mark on the point of contact of each of the bike is stationary. Once the bike starts moving, then after what distance will the two red marks touch the ground again simultaneously?
(a)
42 cm
(b)
84 cm
(c)
264 cm
(d)
294 cm
The radii of the front wheel and the rear wheel of a bike are 14 cm and 21 cm respectively. Rahul puts a red mark on the point of contact of each of the bike is stationary. Once the bike starts moving, then after what distance will the two red marks touch the ground again simultaneously?
(a)
42 cm
(b)
84 cm
(c)
264 cm
(d)
294 cm
Question ID - 50589 | SaraNextGen Top Answer
The radii of the front wheel and the rear wheel of a bike are 14 cm and 21 cm respectively. Rahul puts a red mark on the point of contact of each of the bike is stationary. Once the bike starts moving, then after what distance will the two red marks touch the ground again simultaneously?
(a)
42 cm
(b)
84 cm
(c)
264 cm
(d)
294 cm
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The radii of the front wheel and the rear wheel of a bike are 14 cm and 21 cm respectively. Rahul puts a red mark on the point of contact of each of the bike is stationary. Once the bike starts moving, then after what distance will the two red marks touch the ground again simultaneously? |
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(a) |
42 cm |
(b) |
84 cm |
(c) |
264 cm |
(d) |
294 cm |
Circumference of the front wheel = 
cm.
Circumference of th rear wheel = 
cm.
Req. distance = LCM of 88 and 132 = 264 cm.