Question

In an experiment four quantities a, b, c and d are measured with percentage error 1%, 2%, 3% and 4%
respectively. Quantity P is calculated as follows P= % error in P is
47%
C 14%
D 10% (NEET2013)​

Answer 1

Correct option is

A

14%

P=

cd

a

3

b

2

⇒

P

ΔP

=3(

a

Δa

×100)+2(

b

Δb

×100)+(

c

Δc

+100)+(

d

Δd

×100)

=3×1+2×2+3+4

=3+4+3+4=14%