the lid of a rectangular box of sides 40 cm by 10cm is sealed all round with tape if the cost of the10 cm of tape is rs 5 what is the cost of the tape used to seal the rectangular box ?
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Answer:
Rs.50
Step-by-step explanation:
Let's first find out the Perimeter of the Rectangular box.
Perimeter = 2(l+b)
= 2(40 + 10)
= 2×50
= 100 cm
10cm - Rs.5
100cm - ?
= 100×5/10
= 500/10
= Rs.50
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