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By walking at 3/4 of his usual speed, a man reaches his office 20 minutes later than usual. His usual time is :
The usual value of the helix angle of a drill is
Point A is 10 miles West of Point B. Point b is 30 miles North of pint C. Point C is 20 miles East of Point D. What is the distance (in miles) between Point A and Point D?
Point A is 10 km west of point B. Point B is 30 km north of point C. Point C is 20 km east of point D. What is the distance between point A and D?
A person walking 5/6 of his usual rate is 40 minutes late. What is his usual time?
A train left 1 hour later than the scheduled time but in order to reach its destination 200 km away in time, it had to increase its usual speed by 10 km/hr. What is the usual speed (in km/hr) of the train?
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Point A is south of point B and point B is west point C. To which direction is point A with respect to point C ?
Point A is 10 miles west of Point B. Point B is 30 miles North of Point C. Point C is 20 miles East of Point D. what is the distance between points A and D?
The point angle of a drill, for drilling stainless steel, is