The average of marks of 13 papers is 40. The average of marks of the first 7 papers is 42 and that of the last 7 papers is 35. What are the marks of the seventh paper?

The average of 13 results is 60 . If the average of first 7 Results is 59 and that of last 7 results is 61 , what will be the seventh results ?

Average of 13 numbersis 40. If average of first 7 numbers be 42 and that of last 7 be 35,find the 7th number.

One that marks the paper like lead is :

What is litmus paper and what is the use of litmus paper?

There were five sections in MAT paper. The average score of Pooja in first 3 sections was 83 and the average in the last 3 sections was 96 and the average of all the sections (i.e., whole paper) was 92, then her score in the third section was :