A woman cycles 30 km in 1 hour 45 minutes. A part of her journey is on a level road 18 km long, and the remaining journey is uphill. If the woman's average speed on the level road is 24 km/h, what is her uphill speed (in km/h)?

An article is listed at Rs. 5,000 and two successive discounts of 12% and 12% are given on it. How much will the seller gain or lose if he gives a single discount of 24%?

The average monthly expenditure of a family was Rs.18,600 during the first three months, Rs.21,750 during the next six months, and Rs.22,840 during the last three months of the year. If the total savings during the year was Rs.1,42,020, then the average monthly income (in Rs.) of the family was:

A sum of ₹5,000 is divided into two parts such that the simple interest on the first part for \(4\frac{1}{5} \)years at \(6\frac{2} {3}\% p.a \). is double the simple interest on the second part for \( 2\frac{3}{4} \) years at 4% p.a. What is the difference between the two parts?