Question 6
Fractions, Decimals and ApproximationWhat is the difference between 0.007685 correct to three significant figures and 0.007685 correct to four places of decimal?
- A.10−5
- B.7 × 10−4
- C.8 × 10−5
- D.10−6
Show the answer and explanation
Answer: A (10−5)
Explanation
To 3 s.f. it is 0.00769; to 4 d.p. it is 0.0077. The difference is 0.0077 − 0.00769 = 0.00001 = 10−5.