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More Mathematics Questions
A vessel contains 20 liters of a mixture of milk and water in the ratio 3:2. 10 liters of the mixture are removed and replaced with an equal quantity of pure milk. If the process is repeated once more, find the ratio of milk and water in the final mixture obtained?
A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?
If a + b + c = 0, find the value of $$\frac{{{a^2}}}{{\left( {{a^2} - bc} \right)}} + $$ $$\frac{{{b^2}}}{{\left( {{b^2} - ca} \right)}} + $$ $$\frac{{{c^2}}}{{\left( {{c^2} - ab} \right)}} = ?$$
the difference between two numbers is 3 and the difference between their squares is 63. Which is the larger number ?
In an examination A got 25% marks more than B, B got 10% less than C and C got 25% more than D. If D got 320 marks out of 500, the marks obtained by A were :