Question

Assume that coal is a normal good. If the price of coal increases and the quantity sold increases, which of the following is consistent with these observations? (A) The price of oil increased, oil and coal being substitutes. (B) A wage increase was given to coal miners. (C) New machinery made coal mining more efficient. (D) Consumers' incomes fell. (E) The demand curve is inelastic.

          Assume that coal is a normal good. If the price of coal increases and the quantity sold increases, which of the following is consistent with these observations?
(A) The price of oil increased, oil and coal being substitutes.
(B) A wage increase was given to coal miners.
(C) New machinery made coal mining more efficient.
(D) Consumers' incomes fell.
(E) The demand curve is inelastic.

Assume that coal is a normal good. If the price of coal increases and the quantity sold increases, which of the following is consistent with these observations?
(A) The price of oil increased, oil and coal being substitutes.
(B) A wage increase was given to coal miners.
(C) New machinery made coal mining more efficient.
(D) Consumers' incomes fell.
(E) The demand curve is inelastic.

Added by Richard S.

Calculus: Early Transcendentals

James Stewart 8th Edition

Instant Answer

Solved by Expert Sri K

11/09/2022

Step 1

Step 1: Given that the price of coal increases and the quantity sold also increases, this indicates that the demand for coal has increased. Show more…

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Assume that coal is a normal good. If the price of coal increases and the quantity sold increases, which of the following is consistent with these observations? (A) The price of oil increased, oil and coal being substitutes. (B) A wage increase was given to coal miners. (C) New machinery made coal mining more efficient. (D) Consumers' incomes fell. (E) The demand curve is inelastic.