Question
The ratio of the length of a rectangle, breadth of the
rectangle and the diameter of a circle is 11:10:7. If the area of the circle is 616 cm2 , then what is the difference between the circumference of the circle and the perimeter of the rectangle?Solution
Area of the circle = Οr2 616 = 22/7 Γ r2 r2 = 196 r = 14 cm (Since, radius cannot be negative) Radius of the circle = 14 cm Diameter of the circle = 2r = 28 cm Length of the rectangle = (28/7) Γ 11 = 44 cm Breadth of the rectangle = (28/7) Γ 7 = 40 cm Perimeter of the rectangle = 2 Γ (44 + 40) = 168 cm Circumference of the circle = 2 Γ (22/7) Γ 14 = 88 cm Required difference = 168 β 88 = 80 cm
49.96% of 861.34 + 2250% of 55.12 = ?
956.41 of 45.06% = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
480 Γ· 10 + 18 % of 160 + ? * 9 = 60 * β36
(29.97%) of 9840 + ? + (45.17% of 1240) = (31.99% of 11750)
`sqrt(1297)` + 189.99 =?
1649.98 Γ· 15.48 Γ 8.12 = ? Γ 8.16
1959.09 + 33.94% of 6250.06 β ? = β10609.02 + β144.24
What approximate value will replace the question mark (?) in the following?
? =...
The interest received by investing Rs. 1200 for 2 years at compound interest of 20% p.a., compounded annually, was re-invested for 3 years at simple int...
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