Question

Find out the reciprocal of 4,
A.$\dfrac{1}{4}$
B.$-\dfrac{1}{4}$
C.-4
D.None of these.

Answer 1

Hint: Assume the given number as ‘a’ and then use the concept “If ‘a’ is any number then its reciprocal is given by $\dfrac{1}{a}$” to get the final answer.

Complete step by step answer:
To solve the given question we will write the given data first and assume it as ‘a’, therefore,
a = 4
As we have to find the reciprocal of given number therefore we should know the formula of finding reciprocal which is given below,
Formula:
If ‘a’ is any number then its reciprocal is given by $\dfrac{1}{a}$.
Therefore, Reciprocal of a = $\dfrac{1}{a}$
As we have to find the reciprocal of the number 4 and therefore in this case ‘a’ is equal to 4 and therefore if we put this value in the above formula we will get,
Therefore, Reciprocal of 4 = \[\dfrac{1}{4}\]
Therefore the reciprocal of given number 4 is equal to \[\dfrac{1}{4}\].
Therefore the correct answer is option (a).

Note: You can directly invert the number to get the reciprocal so there is no need to make the solution lengthy if you are solving it in competitive exams. Do remember that while reciprocating there is no change in sign therefore the answer will be with the same sign.