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04 Sep 2013, 00:43
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The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $1.20 in 1970 was 150 percent of its price in 1960, what was its price in 1980?
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
Please provide explanations! Thanks
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
Please provide explanations! Thanks
04 Sep 2013, 03:06
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fozzzy
The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $1.20 in 1970 was 150 percent of its price in 1960, what was its price in 1980?
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
The price in 1970 was 150 percent of its price in 1960, means that the percent increase was 50% from 1960 to 1970 (and from 1970 to 1980).
Therefore the price in 1980 = $1.2*1.5 = $1.8.
Answer: A.
04 Sep 2013, 03:12
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fozzzy
The price of a certain product increased by the same percent from 1960 to 1970 as from 1970 to 1980. If its price of $1.20 in 1970 was 150 percent of its price in 1960, what was its price in 1980?
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
Please provide explanations! Thanks
a) $ 1.80
b) $ 2.00
c) $ 2.40
d) $ 2.70
e) $ 3.00
Please provide explanations! Thanks
Let the price in 60's be x
In 1970s the price is $1.2
as per Q, x* 150/100= 1.2
And as the percent increase in price is same so in 1980's the price will be 1.2*150/100= $1.8
