A frustum-shaped can has end radii 11 cm and 2 cm and a depth of 15 cm. It is filled to the brim with milk that costs ₹ 48 per litre. Find the cost of the milk. (Take \π = 22/7 , 1 litre = 1000 cm³.)

Question

Accepted Answer

₹ 110.88. V = 1/3 × 22/7 × 15 × (121 + 4 + 22) = 1/3 × 22 × 15 × 21 = 2310 cm³ = 2.31 litres. Cost = 2.31 × 48 = ₹ 110.88. ₹ 110880 treats the 2310 cm³ as 2310 litres (the missing ÷ 1000); ₹ 1108.80 and ₹ 11.09 come from dividing by 100 and by 10000 instead.

A frustum-shaped can has end radii 11 cm and 2 cm and a depth of 15 cm. It is filled to the brim with milk that costs ₹ 48 per litre. Find the cost of the milk. (Take $π = \frac{22}{7}$ , 1 litre = $1000 cm^{3} .$ )

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More Class 10 Frustum of a Cone practice

A frustum-shaped can has end radii 11 cm and 2 cm and a depth of 15 cm. It is filled to the brim with milk that costs ₹ 48 per litre. Find the cost of the milk. (Take π=722​, 1 litre = 1000cm3.)

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 10 Frustum of a Cone practice

A frustum-shaped can has end radii 11 cm and 2 cm and a depth of 15 cm. It is filled to the brim with milk that costs ₹ 48 per litre. Find the cost of the milk. (Take $π = \frac{22}{7}$ , 1 litre = $1000 cm^{3} .$ )