Ajay bought Rs.11,000 from a bank to buy a car at 12% simple Interest. If he paid Rs 6,600 as interest while clearing the loan, find the time for which the loan was given.

Find the difference of CI and SI on a sum of Rs. 30240 invested for 3 years at rate of interest per annum.

Directions : In these questions , a part of the sentence is given in bold . Below are given alternatives to the bold part at (A) , (B) and (C) which may improve the sentence . Choose the correct alternative . In case no improvement is needed you answer is (D ) .

He was so afraid that his knees knocked one another.

In a row of boys, if A is 10th from left and B is 9th from the right and interchange their positions, A becomes 15th from the left. How many boys are there in the row?

Bovidae ovis is the scientific name of __

The average of all prime numbers 21 to 50 is (round off to one decimal number) 

In each of the following sentences, an idiomatic expression or a proverb. Select the  alternatives which best describes its use in the sentence.
Mrs. Nayak opened the discussion on the ‘alarming rate of poverty in India’.