Ketan bought a shirt and sold it to Mahesh at a profit of 5%. Mahesh sold it to David at a loss of 24%. If David paid Rs.3,990, then the cost price (in Rs.) of the shirt Ketan bought is:
If x and y are inversely proportional, then which of the following is correct?
\( \frac{x}{y} \) = k
xy =\( \frac{y}{x} \)
\( \frac{x}{y} \) = 1
xy = k
Lokesh travels from City A to City B. If Lokesh drives his car at \( \frac{3}{4} \) of his normal speed, then he reaches City B 24 minutes late. Find the time (in minutes) that Lokesh would have taken to travel from City A to City B if he drove at his normal speed.