Solve for θ
Solve for θ 2 tan 2θ = tanθ+1
The estimated value of a machine
A manufacturer reckons that the value of a machine, which costs him Rs. 15625, will depreciate each year by 20%. Find the estimated value at the end of 5 years.
The-perimeter-of-the-parallelogram
ABCD is a parallelogram. BD = 2. The angles of triangle BCD are all equal. What is the perimeter of the parallelogram?
Area in square inches does the picture cover
A picture is copied onto a sheet of paper 8.5 inches by 10 inches. A 1.5 inch margin is left all around. What area in square inches does the picture cover?
The area of triangle
In triangle ABC, AD = DB , DE is parallel to BC, and the area of triangle ABC is 40. What is the area of triangle ADE?
How many Math problems does he solve?
Andy solves problems 74 to 125 inclusive in a Math exercise. How many problems does he solve?
Distance of the foot of the ladder from the building
A ladder 25m long reaches a window of a building 20m above the ground. Determine the distance of the foot of the ladder from the building.
The dimensions of rectangular garden
A gardener told Neha that 42 m long wire would be required for fencing of her rectangular garden, whose breadth is half of its length. Neha needs to cross check the measurements. What are the dimensions of her garden?
How to find mean of numbers?
Mean number of people? Mean is a value obtained by dividing the sum of all the values of a variable by the number of values.
One root of the quadratic equation
If one root of the quadratic equation x^2 – 7𝓍 + k = 0 is 4, then find the value of k.
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