Question
A shopkeeper plans to wrap a rectangular gift box with gift
paper. The dimensions of the box are 15 cm × 12 cm × ‘a’ cm. The cost of wrapping the gift is Rs. 9504, given that the price of the gift paper is Rs. 12 per cm². Determine the value of ‘a’.Solution
Total surface area of rectangular box = 9504/12 = 792 cm 2
According to question,
2 (15 × 12 + 12a + 15a) = 792
180 + 27a = 396
27a = 216, a = 8
So, the value of ‘a’ = 8 cm
More Mensuration Questions
Solve the given equation for ?. Find the approximate value.
[(49.88% of 320.11) × (34.85% of 460.24)] ÷ √783.94 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
79.99% of (84.89 × 5.99) - (3.89)2 × 21.87 = ?
(29.892 × √290) + 32.98 × 6.91 = ?
44.84% of 799.94 + (625.21 ÷ 24.91) – √(224.77) = ?
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
(20.98 ÷ 2.91) + (15.12 – 5.96) = ?
56.05 2 – 24.24 2 + (63.98) 3/2 – 32.28% of 1500 = ? 2 + 113.03 × 5.09
[54.96 × √99.96 – {(25.02/6.84)% of 280.24}]/(3.032 × 19.87) = ?
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