A cylindrical candle, 14 cm in diameter and length 2 cm is melted to form a cuboid candle of dimensions 7 cm x 11 cm x 2 cm. How many cuboidal candles can be obtained?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 2.
Radius (r) = 14/2 = 7 cm
Volume of cylinder = πr2h = (22/7) × (7)2 × 2 =308 cm3
Volume of cuboid = 7 × 11 × 2 = 154 cm3
Number of Cuboids = 308/154 = 2
Therefore, 2 cuboidal candles can be obtained.