- (A) Rs.850
- (B) Rs.860
- (C) Rs.876
- (D) Rs.886
_______ is considered the largest glacier of Pakistan.
March 18, 2026
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- (A) Siachen Glacier
- (B) Tirich Mir Glacier
- (C) Biafo Glacier
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The cost of paint is Rs.36.50 per kg. If one kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having each side of 8 feet?
The cost of paint is Rs.36.50 per kg. If one kg of paint covers 16 square feet, how much will it cost to paint outside of a cube having each side of 8 feet?
- Solution: Let’s solve this problem in a relaxed way.
- Step 1: Find the surface area of the cube:
- The cube has 6 faces, and all faces are square with a length of 8 ft.
- Surface area = 6 x (length of the sides)^2 = 6 ×(8)^2 = 6 × 64 = 384 sq ft.
- Step 2: Find the paint needed:
- 1 kg of paint is needed for an area of 16 sq ft.
- Therefore, paint needed = (Total area) / (Area per kg of paint) = 384/16 = 24 kg.
- Step 3: Find the cost:
- Cost = Paint needed x Cost per kg of paint = 24 × 36.50 = (36.50 × 20) + (36.50 × 4) (using the distributive law of multiplication over addition) = 730 + 146 = 876.
- Answer: Rs. 876 (Option C).
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