Measurement 5443

At the last measurement, 4 classmates were 164cm, 168cm, 172cm, and 176cm tall, and the 5th classmate was 5cm shorter than the average height of the first four. What was the average height of the five classmates in cm?

Correct answer:

m =  169 cm

Step-by-step explanation:

a=164 cm b=168 cm c=172 cm d=176 cm f=(a+b+c+d)/45=(164+168+172+176)/45=165 cm m=(a+b+c+d+f)/5=(164+168+172+176+165)/5=169 cm

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