Q1. A hollow cylinder having inner radius 14 cm and height is 28 cm and thickness is 2 cm. if this cylinder is melted to form identical spheres having radius of 4.2 cm, then find how many maximum spheres can be formed?
(a) 17
(b) 16
(c) 18
(d) 15
(e) 14
Directions (3-4): A consignment should deliver on time to customer for which Mahendra start his journey with uniform speed, after 2 hours customer call Mahendra to deliver his order 1 hour before the decided time. Mahendra increased his speed by 50% to deliver it 1 hour before the decided time.
Q3. Find the total time taken by Mahendra to deliver the consignment?
(a) 5 hours
(b) 4 hours
(c) 6 hours
(d) 7 hours
(e) 3 hours
Q4. If initially, customer alto start moving toward Mahendra at speed of 60 km/hr and take his consignment after 3 hours then find the total distance between Mahendra and Customer initially.
(a) 256 km
(b) 150 km
(c) 500 km
(d) 450 km
(e) 300 km
Solutions
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