Two persons Raj and Ramu started working for a company in similar jobs on January 1, 1991. Raj's initial monthly salary was Rs 400, which increases by Rs 40 after every year. Ramu's initial monthly salary was Rs 500 which increases by Rs 20 after every six months. If these arrangements continue till December 31, 200. Find the total salary they received during that period. Choose the correct choice from the following answers:
A) Rs 108000  B) Rs 144000  C) Rs 132000  D) Rs 152400  E) None of these
Explanation :   Raj's salary as on 1 jan 1991 is Rs 400 per month.   His increment in his month salary is Rs 40 per annum   His total salary from 1 jan 1991 to 31st dec 2000   i.e. in ten years   =&gt;12[2(400)+(10−1)40]×10/2.   =&gt;Rs 69,600.   Ramu's salary as on Jan 1st 1991 is Rs 550 and his half yearly increment in his month salary is Rs 20.   His total salary from 1 jan 1991 to dec 31, 2000   =&gt;6[2(500)+(20−1)20]×20/2.   =&gt;Rs 82,000.   Total salary of Raj and Ramu in the ten year period:   =&gt; Rs. 69600+ Rs. 82800.   =&gt;Rs 1,52,400.   Answer : Rs 152400
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Two persons Raj and Ramu started working for a company in similar jobs on January 1, 1991. Raj's initial monthly salary was Rs 400, which increases by Rs 40 after every year. Ramu's initial monthly salary was Rs 500 which increases by Rs 20 after every six months. If these arrangements continue till December 31, 200. Find the total salary they received during that period.