exam
Maths Puzzle
Numerical Ability
a student has test scoresof 80, 82, 94, 71. what score does the student need on the next test to produce an average score of 85?
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Please help me solve.
I think I am suppose to use proportions to solve this problem.
I have a square. I know it is same all way around.
Problem state--------- x+3 for height a
A) If 2 dice are thrown, find the probability that the numbers shown will be different.
B) If 3 dice are thrown, find the probability that the numbers shown will all be different.