Question 20 of 36beginner🔧 ApplyVery Short2 marks
Round up the following upto three significant figures: (i) 34.216 (ii) 10.4107 (iii) 0.04597 (iv) 2808
(i)
Answer
34.2
(ii)
Answer
10.4
(iii)
Answer
0.0460
(iv)
Answer
Explanation
To round off numbers to three significant figures, we examine the fourth significant digit. If the rightmost digit to be removed is more than 5, the preceding number is increased by one. If it is less than 5, the preceding number is not changed. For terminal zeros without a decimal point, scientific notation is used to indicate the correct number of significant figures.