Exams

If Tan A = 15/8 and Tan B = 7/24, then Cos(A - B) = ?

Where was paper invented?

X leaves his house facing west, drives 100 km, then turns right and drives 100 km. He then turns left and drives 50 km. In which direction is X facing in relation to his starting point?

What is the least number that should be added to the product 11 x 12 x 13 x 14 to make it a perfect square?

In a certain code, 'book is big' is written as 756; 'big is story' is 764 and 'story book is interesting' is 4356. Which digit represents 'interesting'?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Scrupulous

X drives 30 km south, then turns right and drives 30km, then turns left and drives 20 km and then turns left and drives 30 km. How far is X from his/her initial position?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

The lecturer did not see her ______.