Question
Bret climbed 100 steps in 50 seconds. Steps climbed in 12 seconds is __________.
- 21
- 24
- 22
- 29
Hint:
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
The correct answer is: 24
Here, it is given that Bret climbed 100 steps in 50 seconds. We have to find the number of steps he climbed in 12 seconds.
Number of steps climbed in 50 seconds = 100.
Number of steps climbed in 1 second = 100/50 = 2.
Number of steps climbed in 12 seconds = 2×12 = 24.
Hence, the correct option is B.
Number of steps climbed in 1 second multiplied by number of seconds gives the total number of steps climbed in that number of seconds.
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