Question

parent results not recorded. continue practising or switch user. which is the most accurate way to estimate 21% of 48? \\(\frac{1}{5} \times 50\\) \\(\frac{1}{10} \times 50\\) \\(\frac{1}{3} \times 50\\) \\(\frac{2}{3} \times 50\\) submit work it out

Explanation:

Step1: Analyze the percentage

21% is close to 20%, and 20% is equal to $\frac{1}{5}$ (since $20\%=\frac{20}{100}=\frac{1}{5}$).

Step2: Analyze the number

48 is close to 50 for estimation purposes.

Step3: Match the options

So, the most accurate estimation for 21% of 48 would be using $\frac{1}{5} \times 50$ because $\frac{1}{5}$ is 20% (close to 21%) and 50 is close to 48.

Answer:

$\boldsymbol{\frac{1}{5} \times 50}$ (the first option)