Question
Perimeter of a square is equal to perimeter of a
rectangle, if area of square is 441 sq.cm and length of rectangle is two times that of breath. Find the area of rectangle.Solution
ATQ,
Square side = √441 = 21 cm Perimeter of square = 4 × 21 = 84 cm Rectangle: let breadth = b, length = 2b Perimeter = 6b = 84 → b = 14, l = 28 Area = 28 × 14 = 392 cm²Â
58   83   133   ?    308    433
60, 100, 160, 240, ?, 460
In each of the following number series, one term is missing. Find the missing term.
7, 14, 28, 56, 112, ?
12, 19, 33, ?, 117
4, 12, 36, 108, ?, 396
945, 1890, ?, 504, 144, 32
What will come in place of the question mark (?) in the following series?
11, 13, 19, ?, 51, 81
Find the missing number, in the given number series.
60, 150, ?, 450, 450, 225
31Â Â Â 40Â Â Â 51Â Â Â 64Â Â Â 79Â Â Â Â ?
- What will come in place of the question mark (?) in the following series?
13, 15, 18, 23, 30, ?