Question

The value of 3.00 km in yards upto correct significant figures and the scientific notation is, (1m=1.094 yards)

• A. $3.282$
• B. $3.28\times {10}^2$
• C. $3.28\times {10}^3$
• D. none of these
  

Answer 1

Answer: (C)

$3.28\times {10}^3$

The right option is B

Explanation:

As we know

$1$km$=1093.61$yards

Therefore,

$3$km$=3\times 1093.61$

$=3280.84$yards

$=32.8\times {10}^2$yards

Hence, In the scientific notation value of $3$km in yards is $32.8\times {10}^2=3.28\times {10}^3$