Question
Rs. 30,000 invested at simple interest of 8% p.a. yields
the same interest after 3 years as Rs. 45,000 when invested at simple interest of 'y%' p.a. yields after 4 years. Find the value of 'y'.Solution
ATQ, Simple interest earned on investing Rs. 30,000: 
ATQ, 
A sector of a circle has a central angle of 60°. If the radius of the circle is 14 cm, what is the area of the sector?
In a triangle, PT is tangent and PAB is secant which cuts on a circle at points A & B. If PT= 12 cm, PA= 8 cm then find the legth of AB.
A chord is 24 cm long and distance from center is 7 cm. Find radius.
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Find out the circumference of a sector whose radius is 7 cm and it makes the angle of 45° at the centre.Â
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Find the area of the sector of a circle with radius 14 cm and central angle 90°.
Sum of diameter and circumference of a circle is 232 cm, the find area of circle.
The circumference of a circle is 44 cm. What is its radius? (Use π = 22/7)
From an external point P, two tangents PA and PB are drawn to a circle with centre O and radius 5 cm. The angle ∠APB is 60°. Find OP and PA.
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