Question

An object is weighed on a balance whose pans are not equal in masses when placed in the left pan, the object appears to weigh 10.30g but when placed in the right pan, it appears to weigh 12.62g. What is the correct mass of the object?

• A. 10.30 g
• B. 12.62 g
• C. 11.46 g
• D. Can not find

Answer 1

Answer: (C)

11.46 g

Answer 2

$\frac { \ell _ { 1 } } { \ell _ { 2 } }$ : $\sqrt { \frac { \mathrm { M } _ { 1 } } { \mathrm { M } _ { 2 } } }$ : $\sqrt { \frac { 22 } { 20 } }$ = $\sqrt { 1.1 }$ : 1= 1.04 : 1