Question
The following table shows the marks obtained by five
students in three subjects: What is the average marks obtained by all students in Mathematics?Solution
ATQ, Total marks in Mathematics = 80 + 75 + 90 + 85 + 70 = 400 Average marks in Mathematics = Total marks / Number of students = 400 / 5 = 80
The angle of elevation of the top of a tower from a point on the ground which is 45 meters. away from the foot of the tower is 30°. The height of the t...
Calculate the base length of a triangle given that its area is 640 cm² and the altitude corresponding to this base measures 40 cm.
Measure of each interior angle of a regular polygon can never be?
The radius of the base of a cylinder is 14 cm and its curved surface area is 880 cm². Its volume (in cm³) is: (Takе π = 22/7)
The ratio of length to breadth of a rectangle is 8:5. When the length and breadth of the rectangle is increased by 25% and decreased by 30% respectively...
A solid cylinder has the total surface area 231 sq.cm. If its curved surface area is of the total surface area, then the volume of the cylinder is
The length of a plot is six times its breadth. A playground measuring 192 square metres occupies half of the total area of the plot. What is the length ...
If the ratio of areas of two circle is 9:25, then the ratio of their circumferences will be:
A, B and C enter into a partnership, A invest 2X + 5000, B invest X + 15000 and C invest 5X + 2000 for one year if B share is 10000 from total profit of...
One side of a parallelogram is 25 cm and its distance from the opposite side is 9 cm. The area of the parallelogram is:
