Question
The volume of a solid cube is 2744 m3. If
whole cube is to be painted at a rate of Rs. 7.5 per m2, then what will be the cost of painting the cube?Solution
Let the edge length of the cube = ‘a’ metres Then, volume of the cube = a3 = 2744 So, a = 2744(1/3) = 14 So, total surface area of the cube = 6a2 = 6 × 142 = 1176 m2 So, cost of painting the cube = 1176 × 7.5 = Rs. 8820
More Mensuration Questions
(7 ÷ 0.125) x (10 ÷ 10/3 ) = ? Â
120 × 195 ÷ 13 - ? = 162
52% of 36% of 810 = 72% of 18% of ?Â
- Find the simplified value of the expression:
81 ÷ 9 of 3 × 4 + [12 of 5 – {18 of 2 × (10/5) ÷ 36}] – 15 If √3n 729, then the value of n is equal to:
What will come in the place of question mark (?) in the given expression?
(28/14) of 56 + ? = 920 ÷ 5
(3500 ÷ √1225) × √(20.25) = ? ÷ 4
7/3 of 4/5 of 15/56 of ? = 83
What will come in the place of question mark (?) in the given expression?
? = 70% of 36% of (25 × 320) + 150
654.056 + 28.9015 × 44.851 – 43.129 = ?
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