Math, asked by harshikarathore499, 23 days ago

please solve the 21 question​

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Answers

Answered by devendrakumargoyal12
1

Answer:

The cost of polishing frame=450Rs.

Step-by-step explanation:

Give That

l=15, b=6

Area of rectangular frame=l×b =15×6

=90

Cost of polishing frame= 90×5 = 450Rs.

Answered by vikashyadavkrishna
0

Answer:

Given,

Length of the rectangular frame = 15 cm

Breadth of the rectangular frame = 6 cm

Rate of polishing = ₹5 per cm sq.

Area of the rectangular frame = Length × Breadth

= 15 cm × 6 cm

= 90 cm sq.

The total cost of polishing the frame = ₹5 × 90

= ₹450

Thus, the total cost of polishing the frame is ₹450. Ans.

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