Question
A train travels at 72 km/h and crosses a platform of
length 150 meters in 30 seconds. Find the length of the train.Solution
Speed of the train = 72 km/h = 72 × (1000/3600) = 20 m/s. Distance covered = speed × time = 20 × 30 = 600 meters. Length of the train = 600 - 150 = 450 meters.
What is the sum of the supplementary and complementary angles of 60 ° ?
- Two chords, AB and CD, of a circle intersect at an external point E. Given that the lengths of BE and DE are 12 cm and 8 cm, respectively, and the total le...
In ΔABC, PQ is parallel to BC If AP: PB= 3:4 and AQ= 6 cm, AC is equal to?
Let G be the centroid of the equilateral triangle ABC of perimeter 24 cm. Then the length of AG is
AB and AC are the two tangents to a circle whose radius is 6 cm. If ∠BAC = 60o, then what is the value (in cm) of √(AB2 + AC...
In a regular hexagon, the length of one side is 10 cm. Find the area of the hexagon.
-Constable/1724906147-62.JPG)
O is the circum centre of the isosceles ∆ ABC. Given that AB = AC = 5 cm and BC = 6 cm. The radius of the circle is
In a triangle PQR, ST is drawn parallel to side QR. If PS = 8 cm, QS = 5 cm and PT = 14 cm, then find PR.
