A) 14%
B) 10%
C) 7%
D) 4%
Correct Answer: A
Solution :
| Here, \[P=\frac{{{a}^{3}}{{d}^{2}}}{cd}\] |
| \[\therefore \] \[\frac{\Delta P}{P}\times 100\] |
| \[=\left( \frac{3\Delta P}{a}+\frac{2\Delta b}{b}+\frac{\Delta c}{c}+\frac{\Delta d}{d} \right)\times 100\] |
| \[=3\frac{\Delta a}{a}\times 100+2\frac{\Delta b}{b}\times 100+\frac{\Delta c}{c}\] |
| \[\times 100+\frac{\Delta d}{d}\times 100\] |
| \[=3\times 1+2\times 2+3+4\] |
| \[=3+4+3+4=14%\] |
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