Question

The amount of plastic used in three different production stages is given. Select the stage at which the conversion error is made.
(Hint: 1 ton = 2,000 pounds)

Stage 1

Stage 2

Stage 3

Amount (tons)

Amount (pounds)

21	27	32
42,000	54,000	65,000

• A. Stage 3
• B. Stage 2
• C. None of the above
• D. Stage 1

Answer 1

The correct option is B Stage 2

Stage 1 weight = 21 tons
Stage 2 weight = 27 tons
Stage 3 weight = 32 tons

• 1 ton = 2,000 pounds
• To get weight in pounds, multiply 21 tons with 2000, as 1 ton is equal to 2,000 pounds.
• For stage $1:21\times 2000=42,000$ pounds Thus, there are 42,000 pounds in 21 tons.
• To get weight in pounds, multiply 27 tons with 2000, as 1 ton is equal to 2,000 pounds.
• For stage $2:27\times 2000=54,000$ pounds Thus, there are 54,000 pounds in 27 tons.
• To get weight in pounds, multiply 32 tons with 2000, as 1 ton is equal to 2,000 pounds.
• For stage $3:32\times 2000=64,000$ pounds Thus, there are 64,000 pounds in 32 tons.
• But the shown amount for stage 3 in the table is 65,000 pounds.

Hence, stage 3 has the error in the conversion.