alleryDecimal numerals approximate every real number to how much accuracy?
AAny desired accuracy
BOnly one decimal place
COnly a rough guess
DOnly ten digits
Answer & Solution
Correct answer: A. Any desired accuracy
1. Decimals can be extended with more digits after the decimal mark.
2. Each added digit shrinks the error, so any accuracy is possible.
3. They do not stop at one place or ten digits, and they do approximate well.
_Source: Wikipedia, Decimal, section Approximation using decimal numbers_
Keep practising Fractions
Browse all Fractions questions for CTET, or explore more Mathematics topics.
Related questions
Which statement about 3.14 and pi is true?In which century did positional decimal fractions first appear in an Arab book?Which mathematician's 5th century work gave a 7-digit approximation of pi?Which Persian mathematician advanced decimal fractions in the 15th century?Who introduced decimal fractions in the booklet De Thiende (1585)?Which symbols can be a decimal separator depending on locale?What is the dot in 25.9703 called?Why did many ancient civilisations use ten and its powers?