Question

Marc saved 30% of his monthly salary each month. His monthly salary in December was $ 3650. In January, his salary increased by 12%. How much more did he save in January than in December?​plz help me.

Answer 1

Marc saved $2,533  in January than in December.

Step by Step calculation.

Given the details below :

Salary In December =$3,650

In January, Increased by 12%

Marc saves 30% of $3,650 in December

New salary can then be calculated as :

= Initial salary * % increase / 100 + Initial salary

= 3,650 * 12 / 100 + 3,650

= 3,650 * 0.12 + 3,650

= 4,088

The difference will now be

= 4,088 - 3650

= $438

Since Marc saves in December 30% of $3,650

= 30% of $3,650

= $1,095

Saves in January

= 1,095 + 438

= $2,533

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Answer 2

$\tt \huge{ \underline{ \overline{ \fbox{ \pink{Answer}}}}} \\ \tt \: → 438 \: \: saves \: \: much \: \: more \: \: and \: \: total \\ \: \tt is \: \: 2,533 \\ \tt \bf Step-by-step \: \: Explaination : \\ \\ \tt \bf Given :$

Salary In December =$3,650

In January, Increased by 12%

Marc saves 30% of $3,650 in December

$\tt \bf \: To \: \: Find :\tt How \: \: much \: \: more \: \: will \: \: marc \: \: save \\ \tt \: \: in \: \: January \\ \\ \: \large\mathcal{ \underline{ \green{Solution}}}$

$\tt \: New \: \: Salary \: = initial \: salary\times \frac{ \% \: increase }{100} + initial \: salary \\ \\ \: \: = \: 3650 \times \frac{12}{100} + 3650 \\ \\ \: \: \: \tt →4,088$

Difference = 4,088 - 3650 = $438

Marc saves in December 30% of $3,650 = $1,095

Saves in January = 1,095 + 438 →$ 2,533