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Average Practice Test 5
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© examsnet.com
Question : 15
Total: 40
The average height of 14 girls of Section A is 162 cm and of 16 girls of Section B is 165 cm. Find the average height of all the girls taken together.
163.6 cm
163 cm
162.6 cm
161.6 cm
164 cm
Validate
Solution:
Total height of girls of Section A = 162 × 14 = 2,268 cm
Total height of girls of Section B = 165 × 16 = 2,640 cm
∴ Average height of all the girls
=
(
2
,
268
+
2
,
640
30
)
c
m
s
= 163.6 cm
© examsnet.com
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