For the following questions answer them individually
If $$\frac{A}{2} = \frac{B}{3} = \frac{C}{7}$$, then what is the value of the ratio (4A + 3B - C) : (A + B + C)?
What is the compound interest for 2 years on a sum of ₹7,200 at the rate of 15% per annum, if interest is compounded annually?
The highest common factor of two numbers is 6, and the product of the two numbers is 72 . What is the least common multiple of the two numbers?
The measures of the outer dimensions of a closed metal box are given as 15 cm $$\times$$ 18 cm $$\times$$ 8 cm. The thickness of the metal is 1.5 cm. What will be the volume of the metal required to make the box?
The average of 5 consecutive odd numbers is 33. What is the product of the smallest and the largest of these five numbers?
If a chair is sold at a discount of 20%, then there is a profit of 20%. If the chair is sold at a discount of 30%, then what will be the profit?
The length of a side of an equilateral triangle is 120 cm less than its perimeter. What is the area of the equilateral triangle?
If a boy goes from his home to his school at a speed of 40 km/h, he reaches 10 minutes early. If he goes at a speed of 35 km/h, he reaches 5 minutes late. What will be the time taken for the journey at a speed of 35 km/h?
What should come in place of the question mark (?) in the following mathematical statement?
25% of $$(?)^{2} = 7 + 145 \div 5$$