Question
The circumference of a circle is 66 cm, and the length
of the rectangle is 4 times the radius of the circle. Find the area (in cm 2 ) of the rectangle, if the ratio of length and the breadth of the rectangle is 7:3, respectively. type-sscSolution
Let the radius of the circle = ‘r’ cm Circumference of the circle = 2πr 88 = 2 × (22/7) × r r = 28/2cm=14cm The radius of the circle = 14 cm Length of the rectangle = (14) × 4 = 56 cm Breadth of the rectangle = (56/7) × 3 = 24cm Area of the rectangle = 56 × 24 = 1344 cm2
24.96% of 380 + ? – 169.99 = 149.99% of 80
- 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.)
2470.03 ÷ 64.98 x 39.9 = ? + 20.32
√29584.11  × √ 440.9  – (24.02)2  =? × 2.95Â
92% of 1650 + 32² = ? + 1504 ÷ 16
2660.03 ÷ 94.98 x 59.9 = ? + 20.32
(519.98 + ?) ÷ 13.01 = √440 + 20.0
362, 452, 550, 656, 770, 892, ?
[15.87% of 599.97 + 40.08 × ?] ÷ 4.04 = 8.082.02