Question
How many seconds will a train 65 m in length, travelling
at the rate of 42 km an hour, take to pass another train 80 m long, proceeding in the same direction at the rate of 30 km an hour? TYPE 10Solution
Relative speed = 42 – 30 = 12 km/hr Speed (m/sec) = 12 × (5/18) = 10/3 m/sec Time = Total length of both the trains/Relative speed => Time = (80 + 65)/(10/3) = 43.5 sec
A cone has a base radius of 6 cm and a height of 8 cm. Find its volume and slant height (use π = 3.14).
120Â Â 124Â Â 151Â Â 167Â Â Â 292Â Â Â ?
Factor the polynomial: x³ - 6x² + 11x - 6.
What is the function of the "IF" function in Excel?
The simplified value of (452 x 452 x 452 – 356 x 356 x 356)/(452 x 356 + 452 x 452 + 356 x 356) is:
A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
In the figure, ABCD is a cyclic quadrilateral with O as center of the circle If ∠BOC = 136°, find ∠OBC.
