Question
The length of the rectangle is triple its breadth. If
the perimeter of the rectangle is 72 m, then find the area (in m2) of the rectangle.Solution
Let the breadth of the rectangle = x, so the length of the rectangle = 3x Perimeter = 2(l + b) 72 = 2(x + 3x) 36 = 4x x = 9 Breadth = 9 m, Length = 27 m So the area of the rectangle = 9 × 27 = 243 m2
Present age of ‘A’ is 40% more than that of ‘B’. If 11 years hence from now, ‘B’ will be 5 years younger than ‘A’, then find the sum of ...
Sohan's father was 32 years old when he was born while his mother was 28 years old when his brother, who is two years younger than him, was born. What i...
A boy’s age is 130% of what it was 10 years ago, but 65% of what it will be after 10 years. What is his present age?
- In a family, the mother is 3 years older than the father and four times as old as the son. If the sum of their present ages is 90 years, how many years lat...
When 16 years is subtracted from the present age of A and the obtained result is divided by 3, then the present age of his nephew is obtained. If the pr...
The average age of a group of 40 people is 22 years. If the age of 5 people is excluded, the average age decreases by 1 year. What is the average age of...
Sum of the present ages of A, B, C and D is 65 years. After 3 years ratio of their ages is 4:3:2:2. What is C’s present age?
Five years later, the sum of the ages of P and Q will be 55 years. If their current age ratio is 2:3, find the difference between their ages.
Eight years ago, the sum of the ages of Helen and Karen was 50 years. Eight years hence, the ratio of their ages will be 9:11. Find the current age of H...
Four years ago, the combined ages of Linda and Joan was 56 years. Four years hence, the ratio of their ages will be 4:5. Find the current age of Linda.
Relevant for Exams:
