A boy got following marks out of 90 in 5 subjects: 56, 53, 65, 74, 78. If all the marks are printed in reverse order due to mistake for ex. 65 is printed as 56, then the difference in true and appeared percentage would be

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24 Mar 2011 percentage A boy got following marks out of 90 in 5 subjects: 56, 53, 65, 74, 78. If all the marks are printed in reverse order due to mistake for ex. 65 is printed as 56, then the difference in true and appeared percentage would be: OPtion
1) 5.4
2) 6.5
3) 7.2
4) 7.8
5) 8.0
6) 8.5
7) 9.0
8) 10.9
9) 12.0
10) 13.6; Correct Option: 5 Best Solution (5)

GORLE GANESH 13 years AGO

(56+53+65+74+78)/450=72.44
Revaerse->(65+35+56+47+87)/450=64.44
Diff-> 72.44-64.44=8.00

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Karthick Babu 13 years AGO

56+53+65+74+78=326
65+35+56+47+87=290
diff=36
percentage=(36/450)*100
=8.0
So the ans is Option 5

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raj kumar maddhe 13 years AGO

((56+53+65+74+78)-(65+35+56+47+87))/450;

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Suresh Varma P 13 years AGO

True Percentage = 326/450 = 72.4%
Appeared Percentage = 290/450 = 64.4%
Difference = 8.0
Ans: Option 5

Like? Yes (1) | No (1)

Balakumaran N.A 13 years AGO

True sum=326; appeared sum=290; diff is 36.
so, 36/450*100 =8.0;

Here, 450 is the sum of 5 subject(90).

Like? Yes (1) | No (1)

Dimple

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Time: 00:01:33

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