Commerce Exam  >  Commerce Questions  >  The monthly salary of a person was Rs 320 for... Start Learning for Free
The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service?
Most Upvoted Answer
The monthly salary of a person was Rs 320 for each of the first 3 year...
Given:
- Monthly salary for the first 3 years = Rs 320
- Annual increment of Rs 40 per month for the next 12 years
- Average monthly salary during service period = Rs 694

To find:
- Period of service

Approach:
1. Let's assume the period of service is 'x' years.
2. The salary for the first 3 years is Rs 320 per month. So, the total salary for the first 3 years = Rs 320 * 12 * 3 = Rs 11,520.
3. From the 4th year onward, the salary increases by Rs 40 per month. So, the total salary for the next 12 years = Rs 40 * 12 * (x - 3).
4. The total salary for the entire service period can be calculated as:
Total salary = Rs 11,520 + Rs 40 * 12 * (x - 3)
5. The average monthly salary during the service period is given as Rs 694. So, the total salary for the entire service period can also be calculated as:
Total salary = Rs 694 * 12 * x
6. Setting the two equations equal to each other, we get:
Rs 11,520 + Rs 40 * 12 * (x - 3) = Rs 694 * 12 * x
7. Simplifying the equation, we get:
Rs 11,520 + Rs 480 * (x - 3) = Rs 8,328x
Rs 11,520 + Rs 480x - Rs 1,440 = Rs 8,328x
Rs 480x - Rs 8,328x = Rs 1,440 - Rs 11,520
Rs 7,848x = Rs 10,080
x = Rs 10,080 / Rs 7,848
x ≈ 1.283 years

Answer:
The period of service is approximately 1.283 years.
Explore Courses for Commerce exam

Similar Commerce Doubts

Top Courses for Commerce

The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service?
Question Description
The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? for Commerce 2025 is part of Commerce preparation. The Question and answers have been prepared according to the Commerce exam syllabus. Information about The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? covers all topics & solutions for Commerce 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service?.
Solutions for The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? in English & in Hindi are available as part of our courses for Commerce. Download more important topics, notes, lectures and mock test series for Commerce Exam by signing up for free.
Here you can find the meaning of The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? defined & explained in the simplest way possible. Besides giving the explanation of The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service?, a detailed solution for The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? has been provided alongside types of The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? theory, EduRev gives you an ample number of questions to practice The monthly salary of a person was Rs 320 for each of the first 3 years. He next got annual increment of Rs 40 per month for each of the following successive 12 years.His salary remained stationary till retirement when he found that his average monthly salary during his service period was Rs 694. Find the period of his service? tests, examples and also practice Commerce tests.
Explore Courses for Commerce exam

Top Courses for Commerce

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev