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The perimeter of a rhombus =2p Side =p/2 AC= 2a, BD=2b OB =OD=b In ΔAOB- p²/4 = a² + b² p² =4a²+4b²… (1) m² =(2a+2b) ² m²= 4a²+4b²+8ab m²-8ab =4a²+4b² m²-8ab=p² m²-p²=8abdivided by 4 ¼ (m²-p²) =2ab…. (2) Area 0f rhombus=d₁×d₂/2 = 2a×2b/2 =2ab from equation (2) =m²-p²/4 square unit 
The average age of A, B and C is 25 years, while the average age of B, A and D is 23 years. If the ratio of the age of C and D is 5:3, respectively, the...
The ratio of present ages of Rohan to his father is 2:7, and the ratio of present ages of Rohan to his mother is 3:10. If Rohan's...
Currently, the average age of individuals 'A' and 'B' is 17 years, with 'A' being 2 years older than 'B'. The age of 'C' is 50% greater than that of 'A'...
Sum of the present ages of A, B, C and D is 54 years. After 4 years ratio of their ages is 5:4:3:2. What is C’s present age?
In a family a couple has a son and a daughter. The age of the father is four times that of his son and age of her daughter is half of her mother. The wi...
Sum of the present ages of A, B, C and D is 60 years. After 6 years ratio of their ages is 6:5:5:4. What is C’s present age?
The ratio of A and B present age is 3:2. The product of their ages is 2400. What will be the ratio of their ages after 5 years?
The ratio of the present ages of P and Q is 6:5 respectively. If the age of P 12 years hence from now will be 125% more than the age of Q 4 years ago fr...
The ratio of the present ages of Ginni and Binni is 8:3 respectively. Ginni is ‘n’ years older than Binni. If after 4 years, the ratio of the ages o...
Five years ago, the ratio of the age of Tarun to that of Ayush was 6 : 11. Umesh is 10 years older than Tarun. Umesh is ten years younger than Ayush. Wh...
