Question
It takes A and B, 3 and 6 hours, respectively, to
complete a certain work. If they work on the alternate hour. How long will it take them to accomplish the task?Solution
Total work = LCM (3, 6) = 6 Efficiency of A = 2 Efficiency of B = 1 Since they work on alternate days starting with A, So, 2 hours = 3 units Now to complete 6 units of work 2 x 2 hours = 3 x 2 units 4 hours = 6 units Answer is 4 hours.
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.
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