Rahul's father wants to deposit some amount of money every year on the day of Rahul birthday. on his 1st birthday Rs.100,On his 2nd birthday Rs.300,On his 3rd birthday Rs. 600,On his 4th birthday Rs. 1000 and so on.what is the amount deposited by his father on Rahul's 15th birthday
huzaifak22:
i think it's answer is 1200
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Are u sure the question is correct?
but its not
please try for this problem
okay wait
u sure na that the que is correct?
yes
okay
so every year his father increases 100 rs
so for every year.. u hav to add 100 rs to the previous year
i.e for 15th birthday= 100+300+600+1000+1500+2100+2800+3600+4500+5500+6600+7800+9200+10600=12100
did u get it?
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