CBSE Class 10 Answered
AP
Asked by | 05 Oct, 2008, 08:07: PM
Expert Answer
Kamal buys a washing machine of Rs 10000 . He pays Rs 2000 in cash ,so the amount he has to pay is Rs 8000.
1st instalment = Rs 500+ 10% of 8000= 500+800
2nd instalment = Rs 500+ 10% of 7500= 500+750
3rd instalment = Rs 500+ 10% of Rs 7000= 500+700
So a = 500+ 800= 1300
d = -50
S16 = 16/2[ 2x 1300 +15(-50)]
= 8 [2600-750]
= 8 x 2525= 20,200
He paid in all = Rs 20,200+ 2000= Rs 22,200
Answered by | 05 Oct, 2008, 10:22: PM
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