Question 10
MediumOriginal questionOn a winter morning the temperature in Leh is −7 °C and in Shimla it is 5 °C. How many integer temperature values lie strictly between these two readings?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
The integers strictly between −7 and 5 are −6, −5, …, 0, …, 4.
From −6 to −1 there are 6, then 0, then 1 to 4 gives 4.
Total = .
Worth noting
counts the gap, not the integers; including both ends gives 13; forgetting 0 gives 10.
- Concept
- Counting integers across zero
- Typical timeTypical
- 45 s
- Your timeYours
- —
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