Question

Anil spends 90% of the money that he receives every month. Find his monthly savings if he gets Rs 1500 every month.

Answer 1

Hint: We have to find 90% of the total money that Anil gets to find the money that he spent. For this, we have to multiply 90% by Rs 1500. Then, to find the monthly savings, we have to subtract the amount Anil spent from the total money he earned.

Complete step by step answer:
We are given that Anil gets Rs 1500 every month and he spends 90% of that money monthly. Let us find 90% of 1500.
$\Rightarrow 90\%\times 1500$
We have to convert 90 percent to its number form by dividing 90 by 100.
$\Rightarrow \dfrac{90}{100}\times 1500$
Let us simplify the above expression by cancelling the zeroes from the numerator and the denominator.
$\Rightarrow \dfrac{90}{1\require{cancel}\cancel{0}\require{cancel}\cancel{0}}\times 15\require{cancel}\cancel{0}\require{cancel}\cancel{0}$
We can write the result of above simplification as
$\begin{align}
  & \Rightarrow 90\times 15 \\
 & =1350 \\
\end{align}$
Therefore, 90% of Rs 1500 is Rs 1350.
Now, we have to find the monthly savings. For this, we have to subtract the amount Anil spent from the total money he earned.
$\Rightarrow \text{ Monthly savings}=1500-1350=\text{Rs 150}$
Hence, Anil’s monthly savings is Rs 150.

Note: Students must learn to convert a number to its percentage and vise-versa. To convert a number to its percentage, we have to multiply it by 100 while to convert a percentage into its number, we have to divide it by 100. Students must never forget to write the units at the end of each calculation.