Question

The density of a cube is measured by its mass and the

lengths of its arms. If the errors in measurement of mass

and length are 4% and 3% respectively, then the measurement of

density will be

(a) 7%.

(c) 13%

(b) 10%

(d) 15%​

Answer 1

Answer:

Density d=

Volume

Mass

Or d=

a

3

m

Percentage error in density % d= %m+3× % a

⟹ %d=3+3×2=9 %