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If the sides of a square be doubled find the increase of percentage in area. (a) 100%       (b) 200%        (c) 300%           (d) 400%

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RS AGGARWAL-AREA-All Questions
  1. If each side of a square is increased by 50%, the ratio of the area...

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  2. If the side of a square are halved, then its area (a) remains same   ...

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  3. If the sides of a square be doubled find the increase of percentage...

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  4. An error of 2% in excess is made while measuring the side of a squa...

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  5. If the area of a square increases by 69%, then the side of the squa...

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  6. If the diagonal of a square is made 1.5 times, then the ratio of th...

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  7. The length and breadth of a square are increased by 40% and 30% res...

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  8. The length of one pair of opposite sides of a square is increased b...

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  9. If the length of a certain rectangle is decreased by 4 cm and the w...

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  10. A rectangle becomes a square when its length is reduced by 10 units...

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  11. If the side of a square is increased by 5 cm, the area increases by...

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  12. The difference of the areas of two squares drawn on two line segmen...

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  13. The areas of a square and a rectangle are equal. The length of the ...

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  14. The area of a square is twice that of a rectangle. The perimeter of...

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  15. Twenty-nine times the area of a square is one square metre less tha...

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  16. A rectangular plank sqrt(2) metre wide is placed symmetrically o...

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  17. What will be the area of 4 metre high wall on all four sides of a r...

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  18. The area of the four walls of a room is 120m2 and the length is twi...

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  19. A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering...

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  20. The length of a room is double its breadth. The cost of colouring t...

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