Exams

α and β are the roots of the quadratic equation x2 – x – 1 = 0. What is the value of α8 + β8?

Allium Cepa is the scientific name of _____.

Two pipes of length 1.5 m and 1.2 m are to be cut into equal pieces without leaving any extra length of pipes. The greatest length of the pipe pieces of same size which can be cut from these two lengths will be

Which country has the most coal reserves?

______ is the perpendicular distance between point of application of force and axis of rotation.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
You must (be mistake).

Which of the following is a greenhouse gas or a gas which can deplete the ozone layer?

The average weight of P, Q and R is 47 kg. If the average weight of P and Q be 32.5 kg and that of Q and R be 48.5 kg, then what is the weight of Q (in kgs)?