By selling an article at \( \frac{2}{5} \) of its actual selling price, Nirbhay incurs a loss of 26%. If he sells it at 84% of its actual selling price, then the profit percentage is:
Given that 580.5 = x, 580.79 = y and xz = y10, then the value of z is close to:
Pallavi bought a toy for ₹740, decorated it at a cost of ₹16 and sold the toy for ₹558. Find the loss or profit percentage.
550% loss
\( \frac{560}{21} \) % profit
\( \frac{550}{21} \) % profit
\( \frac{550}{21} \) % loss
A cylindrical rod has an outer curved surface area of 3300 cm². If the length of the rod is 72 cm, then the outer radius (in cm) of the rod, correct to two places of decimal, is: (Take π = \( \frac{22}{7} \))