Question
A train passes 150 m long platform in 10 seconds and a
man standing on the platform in 8 seconds. Find the speed of the train?Solution
Let the length of the train be x m Length of the platform = 150 m Now, (x+150)/10 = x/8 8x + 1200 = 10x 1200 = 2x x = 600 Length of the train = 600 m Speed of the train = 600/8 = 75 m/s = 75 × 18/5 = 270 km/h
Find the difference between angle and its complement if the angle is three-seventh of its complement.
A triangular field has sides 13 m, 14 m, and 15 m. A well with a diameter of 7 m is dug outside the field. If the entire soil dug from the well is used ...
If O is circumcentre of acute angled triangle ABC, if ∠ OBC = 150 then ∠BAC = ?
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