Question
Among 132 examinees of a certain school, the ratio of
successful to unsuccessful students is 9 : 2, Had 4 more students passed, then the ratio of successful to unsuccessful students will beSolution
the ratio of successful to unsuccessful students is 9 : 2 total number of examines = 132 successful students = (9/11) × 132 = 108 unsuccessful students = (2/11) × 132 = 24 had 4 more students passed successful students = 108 + 4 = 112 unsuccessful students = 24 – 4 = 20 new ratio of successful to unsuccessful students is 112 : 20 28:5
In a parallelogram, the lengths of the diagonals are 24 cm and 10 cm, and the angle between the diagonals is 30°. Find the area of the parallelogram.
In a quadrilateral ABCD, the diagonals AC and BD intersect at right angles. If AC = 16 cm and BD = 12 cm, find the area of the quadrilateral.
The area (in square units) of the quadrilateral ABCD, formed by the vertices A (0, -2), B (2, 1), C (0, 4), and D (-2, 1) is:
Find the variance of the numbers 13, 16, 22, 17.
In parallelogram ABCD, AB = 10 cm, BC = 7 cm and diagonal AC = 13 cm. Find the area of the parallelogram.
The ratio of the angles of a quadrilateral is 3:2:7:8. What is the sum of the largest and the smallest angle?
What is 4(a³b ⁶ ) 16 × 16(a ⁴ b²)2 equal to?
In parallelogram ABCD, coordinates are A(1, 2), B(5, 4) and C(7, 6). Find the coordinates of D and the area of the parallelogram.
The diagonals of a parallelogram are 24 cm and 10 cm, and the angle between them is 60°. Find its area.
In a parallelogram, adjacent sides are 10 cm and 8 cm, and the included angle between them is 60°. Find the area of the parallelogram.
