Question
The circumference of a circle is 55 cm and the length of
the rectangle is 8 times the radius of the circle. Find the area (in cm2) of the rectangle, if the ratio of length and the breadth of the rectangle is 14:5, respectively.Solution
Let the radius of the circle = ‘r’ cm Circumference of the circle = 2πr 55 = 2 × (22/7) × r r = 8.75 Radius of the circle = 8.75 cm Length of the rectangle = 8.75 × 8 = 70 cm Breadth of the rectangle = (70/14) × 5 = 25 cm Area of the rectangle = 25 × 70 = 1750 cm2
What will come in place of the question mark (?) in the following series?
1223, ?, 1308, 1553, 1393, 1638
What will come in place of the question mark (?) in the following series?
4.5, 8, 15, 29, ?, 113
What value should come in the place of (?) in the following number series?
1.5, 2.5, 4, 6, ?, 11.5
51    52    48     57    ?      66      30
...75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
25, 41, 73, ?, 185, 265
- What will come in place of (?) in the given number series.
2, 6, 18, 54, ?, 486 4097, ?, 4359, 4493, 4629, 4767
5 6 14 45 ? 925
...Find the missing number in the given number series.
 305, 316, 302, ?, 295, 346Â
