Question

Round the following numbers to 2 significant digits .

(a)3472
(b)84.16
(c)2.55 and
(d)28.5

Answer 1

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ANSWER::

(a) After rounding off it will be 3500 because after digit 4 , 7 is present whose value is greater than 5 and the next two digits are neglected and the value of 4 is increased by 1.
(b)After rounding off it will be 84
(c)After rounding off it will be 2.6
(d)After rounding off it will be 28

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