Question
The cost of painting is Rs.180 per kilogram. One
kilogram paint covers 30 square feet. How much it will cost to paint a cube having each side 14 feet?Solution
Area of a cube = 6 × side × side 6 × 14 × 14 = 1176sq.feet Cost of painting the cube = 1176/30 × 180 = Rs. 7056
More No. System Questions
√3598 × √(230 ) ÷ √102= ?
15% of 2400 + (√ 484 – √ 256) = ?
(13)2 - 3127 ÷ 59 = ? x 4
6269 + 0.25 × 444 + 0.8 × 200 = ? × 15
...(53 + 480 ÷ 4)% of 20 = ?% of 70
Find the simplified value of the following expression:
62 + 122 × 5 - {272 + 162 - 422}
(15 × 225) ÷ (45 × 5) + 480 = ? + 25% of 1240
√ [? x 11 + (√ 1296)] = 16
11 × 25 + 12 × 15 + 14 × 20 + 15 = ?
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