question_answer 7)

                A man got a 10% increase in his salary. If his new salary is Rs. 1,54,000, find his original salary.

Answer:

                100 + 10 = 110 \[\because \]     If new salary is Rs 110, then original salary = Rs 100 \[\therefore \] If new salary is Rs 1, then original salary = Rs \[\frac{100}{110}\] \[\therefore \] If new salary is Rs 154000, then original salary \[=\frac{100}{110}\times 154000\] Hence, his original salary is Rs 140000.