Question
A frustum of a square pyramid has base edges of 10 cm
and 6 cm, and a height of 8 cm. What is its volume? Calculate approximate valueÂSolution
Volume of a frustum of a square pyramid = (1/3)h(a² + b² + ab) = (1/3) * 8 * (10² + 6² + 10*6) = (1/3) × 8 × (196) = (8×196)/3 = 1568/3 = 522.66 cm or 523 cm³ Answer: (C)
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187