Question
Six numbers are arranged in decreasing order. The
average of the first five numbers is 40, and the average of the last five numbers is 35. What is the difference between the first and the last number?Solution
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:
What is 4(a³b ⁶ ) 16 × 16(a ⁴ b²)2 equal to?
In a quadrilateral ABCD, the diagonals AC and BD intersect at O. If AO = 8 cm, OC = 12 cm, BO = 6 cm, and OD = 9 cm, find the area of the quadrilateral ...
The ratio of the angles of a quadrilateral is 3:2:7:8. What is the sum of the largest and the smallest angle?
Find the variance of the numbers 13, 16, 22, 17.
A trader marked an article 50% above its cost price and sold it after allowing a discount of 30%. If the transaction resulted in a profit of Rs. 26, the...