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### Mathematical Skills | Time, Speed and Distance

 Q. No. 1: Walking at 3/4 of his usual place, a man reaches, his office 20 minute late. Find his usual time? A : 2 hr B : 1 hr C : 3 hr D : 1.5 hr Solution
 Q. No. 2: A motorboat whose speed is 15 km/hr in still water goes 30km downstream and comes back in four and a half hours. The speed of the stream is A : 4.5 km/hr B : 6 km/hr C : 7 km/hr D : 5 km/hr Solution
 Q. No. 3: A passenger train takes two hours less for a journey of 300km if its speed is increased by 5km/hr from its normal speed. The normal speed is A : 35 km/hr B : 50 km/hr C : 25 km/hr D : 30 km/hr Solution
 Q. No. 4: A race course is 400 m long. A and B run a race and A wins by 5m. B and C run over the same course and B win by 4m. C and D run over it and D wins by 16m. If A and D run over it, then who would win and by how much? A : D by 7.2 m B : A by 7.2 m C : A by 8.4 m D : D by 8.4 m Solution
 Q. No. 5: Wheel of diameter 7cm and 14 cm start rolling simultaneously from X and Y which are 1980cm apart towards each other in opposite directions. Both of them make same number of revolutions per second. If both of them meet after 10s, the speed of the smaller wheel is A : 22 cm/s B : 44 cm/s C : 66 cm/s D : 88 cm/s Solution
 Q. No. 6: The jogging track in a sports complex is 726 m in circumference. Suresh and his wife start from the same point and walk in opposite direction at 4.5 km/hr and 3.75 km/hr respectively. They will meet for the first time in A : 5.5 minutes B : 6 minutes C : 4.9 minutes D : 5.28 minutes Solution
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