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IBPS PO Prelims Model Paper 1 with solutions
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© examsnet.com
Question : 71
Total: 100
There are 15 boys in a basketball team. The average height of the first five boys is 170 cm, the next five boys is 178 cm and the last five boys is 176 cm. What is the average height of all the 15 boys?
175.80 cm
174.90 cm
175.00 cm
177.00 cm
174.66 cm
Validate
Solution:
The average height of all 15 boys is calculated as follows:
A
w
=
n
1
A
1
+
n
2
A
2
+
n
3
A
3
n
1
+
n
2
+
n
3
A
w
=
5
×
170
+
5
×
178
+
5
×
176
5
+
5
+
5
A
w
=
2620
15
=
174.66
cm
© examsnet.com
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