Question

Which set of figures will be obtained after rounding up the following upto three significant figures?
34.216, 0.04597, 10.4107

• A. 34.3, 0.0461, 10.4
• B. 34.2, 0.0460, 10.4
• C. 34.20, 0.460, 10.40
• D. 34.21, 4.597, 1.04

Answer 1

The correct option is B 34.2, 0.0460, 10.4

To round up a given number, ignore the last digit as such if the digit next to it is less than 5. Then increase it by 1, if the next digit is greater than 5.

(i) 34.216

34.22 { since next digit (6) is greater than 5 }

34.2 {since next digit (2) is less than 5 }

(ii) 0.04597

0.0460 {since next digit (7) is greater than 5}

(iii) 10.4107

10.411 { since next digit (7) is greater than 5}

10.41 { since next digit (1) is less than 5}

10.4 { since next digit (1) is less than 5}

Thus option B is correct.