3 OUT OF 1000 PARTS OF EARTH IS SULPHUR. WHAT IS THE PERCENTAGE OF SULPHUR IN EARTH Choose the most appropriate option:
A) 11/50  B) 2/9  C) 1/45  D) 2/7  E) NONE OF THESE
REQUIRE2/7 PERCENTAGE=(3/1000*100)%=2/7%   CORRECT OPTIONS: 2/7
<result>D</result>
3 OUT OF 1000 PARTS OF EARTH IS SULPHUR. WHAT IS THE PERCENTAGE OF SULPHUR IN EARTH