Question
The perimeter of 4 squares is 20 cm, 32 cm, 36 cm and 40
cm respectively. What will be the area of the square having perimeter equal to sum of edges of 4 squares? (in sq.cm)Solution
Let side of 4 squares be a, b, c and d cm respectively. => a = 20/4 = 5 cm => b = 32/4 = 8 cm => c = 36/4 = 9 cm => d = 40/4 = 10 cm Perimeter of new square = a + b + c + d = 32 => side = 32/4 = 8 cm Required area = side2 = 82 = 64 cm2.
Age of ‘A’ after 16 years will be three time of his age 12 years ago. Eight years hence from now, ratio of ages of ‘A’ and ‘B’ will be 2:3, ...
The ratio of age of A and his son is 5:2. If the difference of their ages 4 year ago is 21, then find the sum of ages of A and his son 9 year hence?
Four years from now, the age of 'A' will be 60% of the age of 'B' at that time. The combined present ages of 'A' and 'B' exceed the current age of 'C' b...
‘A’ is 8 years younger than ‘B’ and 6 years elder than ‘C’. If the present age of ‘B’ and ‘D’ is 30 years and 20 years, respectively...
- The present age ratio of Kavya to Neha is 3:5. Seven years ago, Neha was 5 years more than twice the age of Kavya. If present average age of Kavya, Neha an...
The ratio of the present ages of ‘A’ and ‘B’ is 7:6, respectively. Two years hence from now, the age of ‘B’ will be 20 years. If the average...
The current average age of four colleagues - Priya, Qasim, Ron, and Sam - is 30 years. The ratio of the present ages of Sam and Tina is 3:4, respectivel...
Present ages of 'A' and 'B' are in the ratio 7:5, respectively. Present age of 'C' is 60% more than 'B'. If the difference between present ages of 'C' a...
Sum of the present ages of A, B, C and D is 70 years. After 5 years ratio of their ages is 6:4:3:2. What is C’s present age?
- Seven years ago, the age ratio of 'F' and 'G' was 2:3. In five years, their ages will be in the ratio 3:4. What is the current age of 'V' who is 2 years yo...
Relevant for Exams:
