Question
If sin θ and cos θ are the root of standard Quadratic
Equation , then which of the following is true ? 1. a2 + b2 - 2ac = 0 2. b2 - a2 + 2ac = 0 3. a 2 + b 2 + 2ac = 0 4. a 2 - b 2 + 2ac = 0Solution
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A trader mixes 48 kg of rice costing Rs. 35 per kg with 32 kg of rice costing Rs. 50 per kg. How much rice costing Rs. 65 per kg should be added to the ...
A vessel contains 270 litres of milk and water in the ratio of 5:4. If 15 litres of milk is added to the mixture, then find the ratio of milk to water i...
400 litres of mixture ‘A’ contains milk and water in it. If mixture ‘A’ is mixed with 500 litres of mixture ‘B’ which contains water and sal...
A container initially holds 120 litres of pure alcohol. First, 18 litres of alcohol is removed and replaced with an equal quantity of water. Then, 18 li...
