For the following questions answer them individually
Pipe A can fill a tank in 10 hours. Pipe B can fill the same tank in 12 hours. Pipe C can empty the full tank in 16 hours. All the pipes are opened at 8 : 00 A.M.and Pipe A and B are closed at 10 : 00 A.M. After how much time from starting will the tank be empty?
The volume of a right circular cylinder is 3 times the volume of a right circular cone. The radius of the cone and the cylinder are 3 cm and 6 cm respectively. If the height of the cylinder is 1 cm, then what is the slant height of the cone?
The cost price of an article is ₹1440 and its selling price is ₹1800. What is the profit percentage?
A sum is divided between two persons in the ratio 3 : 2. If one person got ₹12 less than the other person, then what is the sum?
What is the compound interest on ₹5000 in 2 years at the rate of 20% per annum?(interest compounded half-yearly)
The ratio of two numbers is 2 : 1. If each number is increased by 5, then the new ratio becomes 3 : 2. What is the sum of the numbers?
The average age of 12 students is 14 years. If the age of the teacher is also included, the average becomes 15 years. What is the age of the teacher?
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