4. (when fixed and variable overheads are given): The following information is available from the books of a company manufacturing Luxury ceiling fans. Production and sales during the year ending 31-3 2019 was 1,000 units.
Particulars
Amount(Rs.)
Direct Material
2,00,000
Direct Wages
1,50,000
Factory Expenses
1,37,500
Administration Expenses
60,000
Selling Expenses
45,000
Sales
7,30,000
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Radius (r1) of 1st circle = 19 cm
Radius (r2) or 2nd circle = 9 cm
Let the radius of 3rd circle be r.
Circumference of 1st circle = 2πr1 = 2π (19) = 38π
Circumference of 2nd circle = 2πr2 = 2π (9) = 18π
Circumference of 3rd circle = 2πr
Given that,
Circumference of 3rd circle = Circumference of 1st circle + Circumference of 2nd circle
2πr = 38π + 18π = 56π
Therefore, the radius of the circle which has circumference equal to the sum of the circumference of the given two circles is 28 cm.
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