Question

The salary of a staff was increased by 7% . If his present salary is Rs. 12840 , what was his salary before the increment​

Answer 1

Answer:

his salary before the increment was ₹ 11941.2

Step-by-step explanation:

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Answer 2

Given: The salary of a staff was increased by 7% and his present salary is Rs. 12840.

To find: His salary before the increment​.

Solution:

• Let the salary of the staff before increment be equal to x.
• 7% is calculated by dividing 7 by 100.
• So, his increased salary, that is Rs. 12840, would be equal to 7% of the x added to, the salary before increment, which is equal to x.
• We add the 7% to the previous salary because it is an increment in the pay.
• If there would have been a decrement, we would have subtracted the 7%.

        $12840 = (\frac{7}{100} * x) + x$

        $x = Rs. 1200$

Therefore, his salary before the increment​ was Rs. 1200.