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CBSE Class 10 Answered

A woman takes up a job of Rs.8000 per month with an annual increment of Rs. 100. What will she earn over a period of 10 years?

Asked by bosesreyan | 09 Mar, 2016, 10:14: PM
answered-by-expert Expert Answer
begin mathsize 16px style C u r r e n t space s a l a r y equals R s. space 8000 A n n u a l space s a l a r y space i n space 1 s t space y e a r equals 12 cross times 8000 equals R s. space 96000 I n c r e m e n t space e v e r y space y e a r equals R s. space 100 A n n u a l space s a l a r y space i n space 2 n d space y e a r equals 8100 cross times 12 equals R s. space 97200 F o r space 3 r d space y e a r equals 8200 cross times 12 equals R s. space 98400 T h i s space f o r m s space a n space A. P. space w i t h space a equals 96000 comma space d equals R s. space 1200 n equals 10 space y e a r s T h u s comma S subscript n equals n over 2 left square bracket 2 a plus left parenthesis n minus 1 right parenthesis d right square bracket equals 10 over 2 left square bracket 2 cross times 96000 plus 9 cross times 1200 right square bracket equals 5 left square bracket 192000 plus 10800 right square bracket equals 5 cross times 202800 equals R s. space 1014000 end style
Answered by Rashmi Khot | 10 Mar, 2016, 11:37: AM

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