Anjali scores 63% in the first term and 75% in the second term. What was her score in the third term if her yearly average is 75%?
Answers
Answer:
Step-by-step explanation:
Shortcut-1 for the problem type:
A candidate scores x% is an examination fails by ‘a’ marks, while another candidate who scores y% marks and get b marks more than the maximum required passing marks, then the maximum marks for the examination is given by
percentages-exercises-question-2
Shortcut-2 for the problem type:
In an examination a% of total number of candidates failed in a subject X and b% of total number of candidates failed in subject Y and c% failed in both subjects, then percentage of candidates, who passed in both the subjects, is [100 – (a + b – c)]%.
Example: In a quarterly examination a student secured 30% marks and failed by 12 marks. In the same examination another student secured 40% marks and got 28 marks more than minimum marks to pass. The maximum marks in the examination is:
(a) 300
(b) 500
(c) 700
(d) 400
percentages-exercises-question-example-pic-1
Answer:
87%
Step-by-step explanation:
AVERAGE = SUM OF SCORE/3 TERMS
LET THIRD TERM SCORE BE X
75 = 63 + 75 + X / 3
75×3 = 138 + X
225 = 138 + X
X = 225 - 138 = 87
THEREFORE ANJALI'S SCORE IN THIRD TERM IS 87%
HOPE IT HELPS YOU ^_^