Question
The ratio of length to breadth of a rectangle is 4:3
respectively. Perimeter of rectangle is 84 m. If each side of a square is 33.33% less than the breadth of rectangle then What will be the difference between the areas of rectangle and square.Solution
Let the length of rectangle = 4x Then, breadth will be = 3x 2(l+b) = 84 2(4x + 3x) = 84 x = 6 then, the Length will be = 24 m then, the Breadth will be = 18 m Area of rectangle = 24 x 18 = 432m2 Side of square = (2/3) x 18 = 12m Area of square = 144m2 Hence, the Required difference is = (432 – 144) = 288m2
7, 14, 42, 210, 1470, ?
A sequence {Vₙ} is defined for n ≥ 1 by:
I) For every n ≥ 3: Vₙ = 2Vₙ₋₁ − Vₙ₋₂ + 4
It is known that - V₃ = 22 and ...
12, 20, 36, ?, 132, 260
If 6 4 x 5.75 9,
Then, (x²-1) = ?
...12 13 30 �...
112 162 199 ? 242 252
...21 11.5 13 ? 45.5 116.75
...171, 173, 183, 213 , ‘?’, 411, 633.
114 106 102 100 99 ?
...Choose the correct alternative
21: 3 ∷ 574: ?
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