Quantitative Aptitude - Arithmetic Ability Questions

In a mixture of milk and water, there is 19% milk. If the quantity of milk in the mixture is 437 mililitres, then what is the total quantity (in millilitres) of mixture?

The ratio of sand to gravel in a mixture is 17:8 while that between gravel and cement is 6:17. What is the ratio of sand to cement in the mixture?

A shopkeeper marks his goods 40% above the cost price and allows a discount of 25% on it. His gain % is

If α and β are the roots of equation x2 – x + 1 = 0, then which equation will have roots α3 and β3?

tan2Asin2Ais equal to

What is the value of 4600+540+1280+250+36 ?

What is the value of tan150°?

 In the following question, select the odd letter/letters from the given alternatives.