Percent as a ratio

Express each of the following percents as a ratio in the simplest form: 28% (ii) 52%0.4% (iv) 6(2)/(3)%

Express each of the following percents as a ratio in the simplest form: (i)28% (ii) 52% (iii)0.4% (iv) 6 2/3%

Percent as a fraction

Express each of the following percents as ratio in the simplest forms: 2.5% (ii) 0.4%13(3)/(4)%

Express each of the following percents as ratio in the simplest forms: (i)2.5% (ii) 0.4% (iii) 13 3/4%

At what rate of simple interest per annum in percent, the ratio of a principal and its amount will be 50 : 59 after 3 years?

Conversion of a ratio into percent and vice versa

If the height of a cylinder is increased by 15 percent and the radius of its base is decreased by 10 percent then by what percent will its curved surface area change? (a) 3.5 percent decrease (b) 3.5 percent increase (c) 5 percent decrease (d) 5percent increase