*How much does it cost to paint a cuboidal wooden box of 2 m length, 1 m width and 1 m height at the rate of Rs 40 per sqm.?*
1️⃣ Rs 400
2️⃣ Rs 800
3️⃣ Rs 240
4️⃣ Rs 480
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12
Step-by-step explanation:
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Answered by
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Given : cuboidal wooden box of 2 m length, 1 m width and 1 m height
Rate of paint Rs 40 per sq m
To Find : cost of paint
1️⃣ Rs 400
2️⃣ Rs 800
3️⃣ Rs 240
4️⃣ Rs 480
Solution:
Total surface area of cuboid
= 2 (lb + bh + lh)
l = 2
b = 1
h = 1
= 2 ( 2 * 1 + 1 * 1 + 2 * 1 )
= 2 ( 2 + 1 + 2)
= 2 ( 5)
= 10 m²
Rate of paint Rs 40 per sq m
Cost of paint = 40 x 10 = Rs 400
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