Question
If the perimeter of a square is 88 cm and the
circumference of a circle 88cm, then which figure has larger area and by how much?Solution
Perimeter of Square = 88cm 4 × side = 88 Side = 22cm Area of Square = (side)² = (22)² = 484 cm² Now, Circumference of the circle = 88cm 2πr = 88 2 × 22/7 × r = 88 r = 14cm Area of Circle = πr² = 22/7 × 14 × 14 = 616cm² Required Difference = 616 – 484 = 132cm²
14, 17, 23, 32, ?, 59
32, 64, 8, ?, 2, 4Â
9 19 39 ? 159 319
18   29   16   31   ?   33
13, 29, 65, 129, ?, 373
47, 72, 122, ?, 297, 422
What will come in place of the question mark (?) in the following series?
24, 8, 15, ?, 12, 4
12, 18, 30, 54, ?, 198
What will come in place of the question mark (?) in the following series?
9, 22, 61, ?, 217, 334
4, 7, 12, 21, 36, ?