Round the following numbers to 2 significant digits.
(a) 3472, (b) 84.16. (c)2.55 and (d) 28.5

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Solution

(a) In 3472, 7 comes after the digit 4. Its value is greater than 5. So, the next two digits are neglected and 4 is increased by one.
∴ The value becomes 3500.
(b) 84
(c) 2.6
(d) 29

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Similar questions

Round the following numbers to 2 significant digits

(a) 3472,

(b) 84.16,

(d) 28.5.

(a)

16.235 \times 0.217 \times 5

(b)

0.00435 \times 4.6

What are the number of significant digits in the following expression : 4.05020

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