Question

Gauri spends 0.75 of her salary every month. if she earns rs. 12000 per month, in how many months will she save rs. 39000?

Answer 1

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Answer 2

Answer:

The number of months Gauri needs to save Rs 39000 is 13 months.

Solution:

Total salary of Gauri = Rs 12000 per month.

Every month she spends = 0.75 part of her salary.

Assuming she saves the entire part of her salary left after spending 0.75 parts,

Thus, every month she saves = 1 – 0.75 part of her salary.

= 0.25 parts of her salary.

Savings of Gauri every month = 0.25 part of Gauri’s salary every month

$\begin{aligned} & = 0.25 \times \mathrm { Rs } 12000 \\\\ & = \frac { 25 } { 100 } \times R s. 12000 \\\\ & = 25 \times \mathrm { Rs } 120 \\\\ & = \mathrm { Rs } 3000 \end{aligned}$

Gauri has to save = Rs 39000.

∴ Number of months Gauri needs to save Rs 39000

= $\frac {(Rs 39000)}{(Rs 3000)}$

= 13 months.

The number of months Gauri needs to save Rs 39000 is 13 months.