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A certain country had a total annual expenditure of $1.2 x 1
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29 May 2020, 11:19
29 May 2020, 11:19
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A certain country had a total annual expenditure of $\(1.2 \times 10^{12}\) last year. If the population of the country was 240 million last year, what was the per capita expenditure?
(A) $ 500
(B) $1,000
(C) $2,000
(D) $3,000
(E) $5,000
(A) $ 500
(B) $1,000
(C) $2,000
(D) $3,000
(E) $5,000
Re: A certain country had a total annual expenditure of $1.2 x 1
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29 May 2020, 11:19
29 May 2020, 11:19
Expert Reply
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Re: A certain country had a total annual expenditure of $1.2 x 1
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29 May 2020, 11:24
29 May 2020, 11:24
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Carcass wrote:
A certain country had a total annual expenditure of $\(1.2 \times 10^{12}\) last year. If the population of the country was 240 million last year, what was the per capita expenditure?
(A) $ 500
(B) $1,000
(C) $2,000
(D) $3,000
(E) $5,000
(A) $ 500
(B) $1,000
(C) $2,000
(D) $3,000
(E) $5,000
Let's use a nice rule that says: (ab)/(cd) = (a/c)(b/d)
Per capita expenditure = (total expenditure of country)/(total population of country)
= (1.2 x 10^12)/(240 million)
= (1.2 x 10^12)/(240 x 10^6)
= (1.2 x 10^3 x 10^9)/(240 x 10^6)
= (1.2 x 10^3 x 10^9)/(240 x 10^6)
= (1200 x 10^9)/(240 x 10^6)
= (1200/240)(10^9/10^6)
= (5)(10^3)
= (5)(1000)
= 5000
Answer: E
Cheers,
Brent
