A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series. -7.25, -5.75, -4.25, -2.75, ? , 0.25
In this question, some equations are solved on the basis of a certain system. On the same basis find out the correct answer from amongst the four alternatives for the unsolved equation.
The weights of 4 boxes are 30, 20, 50 and 90 kilograms. Which of the following cannot be the total weight, in kilograms, of any combination of these boxes and in a combination a box can be used only once?