Q. Percentage of gold in 18 carat gold is
A) 75.0%
B) 20.0%
C) 80.0%
D) 38.67%
Explanation
(a)
$\because$ 24 carat gold $= 100\%$
$\therefore$ 18 carat gold$= \frac{100 \times 18}{24} = 75\%$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.