alleryWhich number has no reciprocal?
AMinus one
BOne
CSeventeen
DZero
Answer & Solution
Correct answer: D. Zero
1. Every integer is a fraction over 1, and swapping gives its reciprocal.
2. For zero, the swap would put 0 in the denominator, which is not allowed.
3. One, seventeen and minus one all have reciprocals (1, 1/17 and minus one).
_Source: Wikipedia, Fraction, section Reciprocals and the invisible denominator_
Keep practising Fractions
Browse all Fractions questions for CTET, or explore more Mathematics topics.
Related questions
Decimal numerals approximate every real number to how much accuracy?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?