Question
A circle has its area eleven times greater than its
circumference in numeric value. Find the circle’s diameter.Solution
ATQ,
Circumference = 2 × π × r
Area = π × r²
Let radius = r units
π × r² = 11 × 2 × π × r
⇒ r² = 22r
⇒ r = 22
Diameter = 2 × 22 = 44 units
More Difficult level Section Tests Questions
The value of 0.0486 ÷ 0.002 =Â
12.5% of 45 % of 480 + 957/29 = ? -14 × 15
18 + 28 ÷ 4 - 14 = ? - 35
...(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
82.3 × 644.7 × 723.4 × 815.85 = 72?
(49 x ?) / 3.5 + 389 = 627
(117 + 93 - 10) ÷ 40 = ? - 12 X 2
(12% of 1250 + 85% of 400) x 10 = ?2
62.94% of 1800 - 15.03 % of 2400 = ? Â
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