16Hit1600
Expression of IdeasEasy–MediumEmphasising a quantity by comparison

Expression of Ideas practice question

While researching a topic, a student has taken the following notes: - The heart beats about 100,000 times a day. - Over a lifetime of 80 years that is about 3 billion beats. - Each beat moves about 70 millilitres of blood. - The heart is about the size of a fist.

The student wants to emphasise how many times the heart beats over a lifetime. Which choice most effectively uses relevant information from the notes to accomplish this goal?

  1. A. Beating about 100,000 times a day, the heart manages roughly 3 billion beats over an 80-year life.Correct
  2. B. The heart is about the size of a fist.
  3. C. Each beat moves about 70 millilitres of blood.
  4. D. The heart beats every day.

Answer: A. Beating about 100,000 times a day, the heart manages roughly 3 billion beats over an 80-year life.

The daily figure and the lifetime total.

Why the other answers are wrong

B. The heart is about the size of a fist.
Size, not count.
C. Each beat moves about 70 millilitres of blood.
Volume per beat, not count.
D. The heart beats every day.
No quantity.

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