VERY FAMOUS GOOGLE INTERVIEW PUZZLE | THE 25 HORSES PUZZLE

a) In this crossword puzzle (Figure), names of 11 elements are hidden. Symbols of these are given below. Complete the puzzle. 1. Cl, 2) H 3) Ar, 4) O, 5) Xe, 6) N, 7) He, 8) F, 9) Kr, 10) Rn, 11) Ne b) Identify the total number of inert gases, their names and symbols from this crossword puzzle.

A person sell two horses for rupees 480 each. On the first horse he gains 25 percent and on the second horse he losses 25 percent. Find the percent gain or loss in the transaction

A horse costing Rs 80,000 one year ago now costs 25% less. Find the changed price.

Complete the following crossword puzzle (Figure) by using the name of the chemical elements. Use the data given in the table following.