Areas – Practice/Aptitude MCQ Quiz (Multiple Choice Questions And Answers)
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66. A rectangle has 15 cm as its length and 159 cm^2 as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:
- 50 cm
- 60 cm
- 80 cm
- 70 cm
67. The length of a rectangle is twice its breadth, if length is decreased by 5 cm and the breadth is increased by 5 cm. The length of the rectangle is:
- 50 cm
- 40 cm
- 30 cm
- 20 cm
68. If the base of rectangle is increased by 10 % and the area is unchanged then the corresponding altitude must be decreased by:
- 10%
- 0.0909090909090909
- 0.111111111111111
- 0.11
- Becomes threefold
- Becomes fourfold
- Becomes twofold
- none of the above
