A jogger covers a distance of 18 km in 2 hours. If he runs at 1.5 times his original speed, how much time will he take to cover a distance of 27 km? MCQ with Answer and Explanation

Explanation:
Let duration be t hours. Distance difference = 8t - 6t = 2t = 10 km => t = 5 hours. Distance handled at normal speed (6 km/h) = 6 * 5 = 30 km.

Explanation:
Distance covered in 1 revolution = 880 / 1000 = 0.88 meters = 88 cm. Circumference = 2 * (22/7) * r = 88 cm => (44/7) * r = 88 => r = 14 cm. Diameter = 2r = 28 cm.

Explanation:
Downstream speed = 4.5 + 1.5 = 6 km/h. Upstream speed = 4.5 - 1.5 = 3 km/h. Let distance be d. d/6 + d/3 = 2 => 3d/6 = 2 => d/2 = 2 => d = 4 km.