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Total Questions : 2556 | Page 70 of 256 pages
Question 691.  a towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. the percentage of decrease in area is ?
  1.    24%
  2.    27%
  3.    28%
  4.    31%
 Discuss Question
Answer: Option C. -> 28%
Explanation :
Question 692.  if the area of a square with the side a is equal to the area of a triangle with base a, then the altitude of the triangle is.
  1.    a
  2.    a/2
  3.    2a
  4.    none of these
 Discuss Question
Answer: Option C. -> 2a
Explanation :
Question 693.  the length of a rectangle is three times of its width. if the length of the diagonal is √ 810 , then find the perimeter of the rectangle.
  1.    62 cm
  2.    64 cm
  3.    66 cm
  4.    68 cm
 Discuss Question
Answer: Option B. -> 64 cm
Explanation :
Question 694.  if the area of a square with the side a is equal to the area of a triangle with base a, then the altitude of the triangle is.
  1.    a
  2.    a/2
  3.    2a
  4.    none of these
 Discuss Question
Answer: Option C. -> 2a
Explanation :
Question 695.  what will be the cost of gardening 1 meter boundary around a rectangular plot having perimeter of 340 meters at the rate of rs. 10 per square meter ?
  1.    Rs. 3400
  2.    Rs. 3410
  3.    Rs. 3420
  4.    Rs. 3440
 Discuss Question
Answer: Option D. -> Rs. 3440
Explanation :
Question 696.  the length of a rectangle is three times of its width. if the length of the diagonal is √ 810 , then find the perimeter of the rectangle.
  1.    62 cm
  2.    64 cm
  3.    66 cm
  4.    68 cm
 Discuss Question
Answer: Option B. -> 64 cm
Explanation :
Question 697.  a towel, when bleached, was found to have lost 20% of its length and 10% of its breadth. the percentage of decrease in area is ?
  1.    24%
  2.    27%
  3.    28%
  4.    31%
 Discuss Question
Answer: Option C. -> 28%
Explanation :
Question 698.  a farmer to start a 100 sq. m. rectangular garden. since he has only 30 meter barbed wire, he fences three sides of the garden letting his house wall act as the fourth side fencing.find dimension?
  1.    20 m * 5 m
  2.    20 m * 10 m
  3.    18 m * 5 m
  4.    10 m * 17 m
 Discuss Question
Answer: Option A. -> 20 m * 5 m
Explanation :
Question 699.  what will be the cost of gardening 1 meter boundary around a rectangular plot having perimeter of 340 meters at the rate of rs. 10 per square meter ?
  1.    Rs. 3400
  2.    Rs. 3410
  3.    Rs. 3420
  4.    Rs. 3440
 Discuss Question
Answer: Option D. -> Rs. 3440
Explanation :
Question 700.  a triangle and a parallelogram are constructed on the same base such that their areas are equal. if the altitude of the parallelogram is 100 m , then the altitude of the triangle is.
  1.    50 m
  2.    100 m
  3.    200 m
  4.    250 m
 Discuss Question
Answer: Option C. -> 200 m
Explanation :

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