Question

23 The average score of 60 students in an exam is 90. If the scores of the top five students are
not considered then the average of the remaining drops by 5. Il the second ranker scored
less than 140 and all the students got intogral scores, find the minimum marks that could
161
2) 169
3) 152
4) 153
204

Answer 1

Answer:

152

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Answer 2

Answer:

169

Explanation:

Total marks of 60 students= 60*90=5400

Total marks of 55 students= 55*85=4675

total marks of top students=5400-4675=725

The second highest is < 140 so <=139

If x is the top score then

725<= x + 139 +139+139+139( maximum the score can be 139)

we have to calculate the minimimum value of x

725-556<= x

hence 169 is the minimum value