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A rectangular lawn is 60 m by 40 m and has two roads, each 5m wide running in the middle of it. One parallel to its length and other parallel to the breadth. Find the cost of constructing the roads at Rs.80/m2

2.The area of a right triangle is 40/m2. If one of its legs measures 8 cm, find the length of the other leg.

3. Subtract {2a-3b+4c} from the sum of (a+3b-4c),(4a-b+ac) and (-2b+3c-a)

4. Solve : [⅓y2 – 4/7 y +5] – [2/7y – 2/3y2+2] – 1/7 – 3 +2y2]

5. Find the value of (-8u2 v6) x (-2uv4) For u = 2.5, v = 1

6. [2x2 – 5y2] [x2 + 3y2]

7. By what number should we multiply 3-9 so that the product is equal to 3 ?

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