What is the percentage of nitrogen in the ammonium

The number of persons sits between L and O is the same as between M and _____, when counted from the right of both O and M?

How many persons sit between P and R?

If in all the numbers the digits are arranged in an descending order, then which number newly formed is the lowest among all?

Read the direction carefully and answer the following question.

The quality of an MP3 file depends largely on the .......................................... . 

What is the sum of all the digits of the number which is 4th smallest in step III?

Select the pair of words from the given options that shares a similar relationship as the given pair.

Robust : Weak

1 – [(5 – {2 + (–5 + 6 – 2)2}] , बराबर है -

By interchanging the given two signs and numbers which of the following equation will be correct?

× and ÷, 7 and 9