population of a town is 10Lakh . population increased by 20% What is the difference in population 3 years ago & 5 years ago?
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This can be blissfully solved by a single formula.
Final population after increment and decrement respectively=
(actual population) *(increament rate) *(decrement rate)
=10,00,000*(110/100)^2 *(90/100)^2
=10,00,000*(1. 21)*(0.81)
=980100
Final population after increment and decrement respectively=
(actual population) *(increament rate) *(decrement rate)
=10,00,000*(110/100)^2 *(90/100)^2
=10,00,000*(1. 21)*(0.81)
=980100
SanjayNair:
difference h right?
ya
i forgot to put 1 zero
980100
yes
right?
now click thanks button
10% hoga tho
kya hoga amt?
hmm
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