Gina and Tina's average grade is 23 points higher than Tina's grade.

Question

Gina and Tina's average grade is 23 points higher than Tina's grade. What is the difference between their grades?

A. 46.
B. 23.
C. 16.
D. 15.
E. 11.5.

msk0657 · Answer

Given: Gina and Tina's average grade is 23 points higher than Tina's grade

Then we can write it ( G + T ) / 2 = 23 + T.

=> ( G + T ) = 46 + 2T.

G - T = 46.

IMO A is correct option.

OA please....will correct if I missed anything.

stonecold · Answer

As per the Question ->
G+T=2(T+23)
Hence T-G=46
Hence A

JeffTargetTestPrep · Answer

We can let Gina and Tina’s average grade = (g + t)/2. Since Gina and Tina's average grade is 23 points higher than Tina's grade:

(g + t)/2 = 23 + t

g + t = 46 + 2t

g = 46 + t

g - t = 46

Answer: A

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