Question
The perimeter of a rectangle is 120% more than perimeter
of a square of side 10 cm. If the length of rectangle is 250% more than side of square then find the difference between the area of square and the area of rectangle.Solution
Perimeter of the square = 4 x 10 = 40 cm Perimeter of the rectangle = 40 x (220/100) = 88 cm Length of the rectangle = 10 x (350/100) = 35 cm Let the breadth of the rectangle be b cm. => 2 x (35 + b) = 88 => b = 44 – 35 => b = 9 cm Required difference = (9 x 35) - (10 x 10) = 215
Which of the following fractions lies between 3/7 and 8/9?
If the sum of 60% of a fractional number and the number's square root is 5 greater than one fifth of the number, then the number is
0.0056 is equal to which of the following fractions?
Numerator of a fraction is 4 less than the denominator. If 6 and 7 are added to numerator and denominator of a fraction respectively, then fraction beco...
Which of the following fractions lies between 3/7 and 8/9?
The fraction equivalent to 0.474747... is:
Alex has read 5/6 of a book, while Tina has read only 3/5 of the book she is reading. Both have another 150 pages of their respective books remaining to...
A fraction becomes 6/7 when 3 is added to both its numerator and denominator. Similarly, it becomes 7/8 when 5 is added to both i...