Question

The average grade problem is a common one that faces teachers. If a student currently has a 60% in class with 30% of the course work remaining what average is necessary to achieve a 70% for the class? How many ways can this problem be represented? Which representation is a student most likely to choose? Why?

Answer 1

Answer:

Percentage scored by understudy presently = 60%

And remaining course work = 30%

In this way, for if 70% of coursework is treated as 100% of the coursework

At that point,

60 x 70/100 = 42% of score is the thing that the understudy has really scored for the absolute coursework.

In the event that the understudy needs to get a 70%,

at that point the accompanying condition ought to be fulfilled (42 + x)/n = 70 % ,

where as

x be scores the understudy will accomplish in the tests &

n be the number of tests.

The understudy will doubtlessly pick where the n is least and x is most extreme.

This is so in light of the fact that, a base number of tests will improve the score and a most extreme number of score will pull the understudy to his ideal normal.

Likewise, understudy would incline toward less number of tests to maintain a strategic distance from an excess of stress.