Arunika brought some articles and sold half of them at ` 22103 thereby making a profit of 15%. At what price should sell the rest of them so as to earn a total profit of 25%?

The height of a triangle is equal to the perimeter of a square whose diagonal is 9$\sqrt 2$ m and the base of the same triangle is equal to the side of the square whose area is 784 $m^2$. What is the area (in $m^2$) of the triangle?

Arunavo invested total sum of Rs. 16000 in two schemes (A and B) for two years. Scheme A offers compound interest (compounded annually) at the rate of 10% per annum and scheme B offers simple interest at the rate of 12% per annum. If the total interest earned by him from both the schemes after two years is Rs. 3504. How much money (principal) did he invest in scheme B?

Ravi is older than Simar by 4 yr. Four years from now, the respective ratio between Ravi's age and Simar's age will be 9 : 8. What will be the Ravi's age (in yr) 15 yr ago?

A started a business by investing Rs. 33600. After three months B joined him by investing Rs. 23100. After 3 months of B's investment, C joined them by investing Rs. 18900. If the total annual profit earned by them is Rs. 26450, what is C's share of profit?