Qid : 9 - the average height of a, b and c is 148 cm. If the average height of a and b is 136 cm and that of b and c is 125 cm, then what is the height (in cm) of b?
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Answer:
Height of B is 78 cm.
Step-by-step explanation:
- a+b+c/3 = 148
- a+b/2 = 136
- b+c/2 = 125
Solving all three equations you will get,
a=194
b=78
c=172
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