Exams

ABC is a right angled triangle with angle A = 90 deg. Then the value of cos2A+cos2B+cos2C is

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.

Ace, King, Queen, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

30, 62, 189, 760, ?

In water treatment plant, use of chloramines ensures __________

Ornithophily is effected by

If -3[1-(x/2)] + 5x/3 = 1/6, then what is the value of x?

The element with the highest electron affinity among halogens is

X attempts 94 questions and gets 141 marks. If for every correct answer 4 marks is given, and for every wrong answer 1 mark is deducted, then the number of questions wrongly answered by X is __.