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| 1. |
A rectangular piece of metal with sides 24cm and 18cm costs ₹1080.how much will a square piece of the same metal of side 16 cm cost if the cost of metal is proportional to its area ? |
| Answer» COST of square PIECE = rs 640Step-by-step explanation: area of rectangle = l×b=24×18= 432 sq.cmcost of RECTANGULAR piece of metal =₹1080given , cost of metal is PROPORTIONAL to its areaso, cost PER cm of rectangular piece = 1080/432 = ₹2.5Area of square = side×side = 16×16 =256sq.cmcost of 256sq.cm square piece if cost per cm is ₹2.5= 256×2.5= ₹640 | |