Question

●> Had his first salary had been 9 zeds what would be his present Salary?​

Answer 1

75 zed

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Answer 2

Answer:

His present salary is 648.

Step-by-step explanation:

• Sundaram's initial salary = 5 zeds.

        His salary got multiplied by a prime number for some times.

        Finally his salary becomes 360 zeds.

        Final salary is $\frac{360}{5}$ = 72 times to the initial salary.

        72 must be the result of multiplication of some prime numbers.

• Prime number can only be divided by 1 and that number. Example - 2, 3, 5,........
• The expanded form of 72 can be written like this:

         72 = 2 × 2 × 2 × 3 × 3

       That means his salary was doubled for first three times and then it becomes tripled for next two times.

• ●> had his first salary 9 zeds.

First it should be doubled for three times, so the amount will be

                                       = 9 × 2 × 2 × 2 = 72

The it should be tripled for next two times, so the final amount will be

                                      = 72 × 3 × 3 = 648

His present salary is 648.

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