Question

2. Which one of the correct value of sum of the two
numbers 6.75x103 cm and 4.52x102 cm with
regards to significant figures :
सार्थक अंकों के संदर्भ में दो अंकों 6.75x10 सेमी तथा
4.52x10 सेमी० का योग सही होगा:​

Answer 1

7.20×(103)cm

Answer :

A::B::C

Solution :

a=6.75×103cm

b=4.52×102cm

=0.452×103cm

=0.452×103cm(upto 2 places of decimal)

∴a+b==(6.75×103+0.45×103)cm

=7.20 xx 10^3 cm