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NIFT UG 2019 Question Paper with solutions
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© examsnet.com
Question : 21
Total: 150
The average of six numbers is
32
.
If each of the first three numbers is increased by 2 and each of the remaining three numbers is decreased by 4 , then the new average is
35
34
31
30
Validate
Solution:
Given average of 5 number
=
32
Sum of six numbers
=
6
×
32
=
192
Increased in sum due to first three numbers
=
2
×
3
=
6
Decrease in sum due to remaining three numbers
=
3
×
4
=
12
∴
New average
=
192
+
6
−
12
6
=
31
© examsnet.com
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