the value of car decrease 20% every year if after two year the price of car is 420000 find the original price of car
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9
let the original price of car be X
then 20%of X is x/5
so,
X-X/5=4X/5
now,the price is 4X/5,
20%of4X/5 is 4X/25
so after 4X/5-4X/25=16X/25
that is equal to 420000
16x/25=420000
X=6,56,250
is it right
then 20%of X is x/5
so,
X-X/5=4X/5
now,the price is 4X/5,
20%of4X/5 is 4X/25
so after 4X/5-4X/25=16X/25
that is equal to 420000
16x/25=420000
X=6,56,250
is it right
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1
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