A solid weighs 10.00N in air, 6N when forcefully immersed in water, and 7.0N when fully immersed in a liquid, X. Calculate the relative density of the liquid X.

A.

\(\frac{5}{3}\)

B.

\(\frac{4}{3}\)

C.

\(\frac{3}{4}\)

D.

\(\frac{7}{10}\)

Correct answer is C

R.D = \(\frac{\text {weigh in air - weigh in liquid X}}{\text {weigh in air - weigh in water}}\)

= \(\frac{10 - 7}{10 - 6} = \frac{3}{4}\)