For the following questions answer them individually
Two similar pieces of an item were purchesed by paying the same amount for each, and they were sold,respectively,for a profit of 25% and a loss of 20%. What was his profit percentage?
If $$\frac{a}{b}=\frac{b}{c}=\frac{c}{d} ,then\frac{a}{d}$$ in terms of b and c is equal to:
In what ratio should two varieties of tea at ₹300 and ₹400 per kg, respectively, be mixed so that the mixture is worth ₹320 per kg?
Simplify $$\frac{10^{2}of(\frac{1}{5})^{3}\div\frac{1}{4\times}4-\frac{2}{5}of15}{\frac{4}{5}(5\div5of12+\frac{1}{6})}$$
If a person sells 80% of the number of toys for an amount with which he purchesed all the toys,then what is his profit percentage?
X, Y, Z enter into a partnership venture with a capital ₹1,20,000. in which the contribution of Y and Z are,respectively,40% more and ₹1,000 more than that of X. The profit earned is 20% of the capital. Out of this profit ,10% goes towards some incidental expenses. What is the share (in ₹) of X out of it?
A certain sum was invested for three years in a scheme in which the interest gets compounded annually. During the first two years,the scheme provided growths at the rates of 80% and 60%,respectively,but during the third year there was a decline by 40%. What was the overall interest rate for three years?
To circles touch each other externally;the distance between their centres is 12 cm and the sume of their areas (in $$cm^{2}$$) is $$74\pi$$. What is the radius of the smaller circle?
The average daily expenditure of a person during the month of February was ₹120. The average expenditure for the first 15 days was ₹142, and for the last 15 days was ₹96. What was his expenditure (in ₹) on $$15^{th}$$ February?