Question

What is 15 percent of Rs.34?
$
  (a){\text{ Rs}}{\text{. 3}}{\text{.40}} \\
  (b){\text{ Rs}}{\text{. 3}}{\text{.75}} \\
  (c){\text{ Rs}}{\text{. 4}}{\text{.50}} \\
  (d){\text{ Rs}}{\text{. 5}}{\text{.10}} \\
$

Answer 1

Hint – In this question use the direct formula that p percentage of q is given as $\dfrac{p}{{100}} \times q$, so p in this case is 15 and q in this case will be 34. Direct substitution will help getting the right answer.
Complete step-by-step answer:
Given rupees = 34.
Now use the property that x percentage of y is given as = $\dfrac{x}{{100}} \times y$
So 15 % (percentage) of 34 is, here x = 15 and y = 34
 $ \Rightarrow \dfrac{{15}}{{100}} \times 34 = \dfrac{{510}}{{100}} = 5.10$ Rs.
So this the required 15 percentage of Rs. 34
Hence option (d) is the correct answer.

Note – Percent means for every 100 or out of 100. The parentage helps writing the fraction with a denominator of 100. It helps scaling down the number, as the original number can too be easily retrieved from the percentage form.