Question
A square is converted into a rectangle by increasing
its length by 50 % and decreasing its width by 20%. Which of the following statements is true?Solution
Let side of the square = 10m ∴ Area of the square = 100m² and Perimeter of the square = 10 x 4 = 40 m After change, side of the rectangle = 15 m and 8 m ∴ Area of the rectangle = 15 x 8 = 120m² and Perimeter of the rectangle =  2 (15 + 8) = 46 m ∴ Area of the rectangle = 120% of the area of the square and Perimeter of the rectangle = 115% of the perimeter of the square
The sum of 6 consecutive odd numbers is 156. What will be the product of first number and the last number?
[16 × 15 + 224 × 5] ÷ 5 = ? × 4
If p = q + 2, where q is the product of six consecutive positive integers, then which of the following is/are true? Â
a. p is a perfect cube
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