(a) Ayisha scored 18 marks more than what he did in the previous examination in which he scored 30. Amina

Question

scored 30 marks more than she did the previous examination in which she scored 60. Which of the two
girls showed less improvement?

(b) The Venn diagram illustrate the performance of pupils in a test conducted in English and Mathematics
E= {number of pupil who passed English}
M= {number of pupil who passed Mathematics}
U= {Universal set}.

Details of diagram is as followed:
E=38
M ?
Region 1(A only region) ?
Region 2(both A and B ) = 9
Region 3( B only region)?
Region 4 (neither A nor B) =7

i. How many pupil passed mathematics?
ii. How many pupil passed only one subject?

Please explain how to calculate step by step it will help alot . Thanks

Answer 1

Sorry I =70 I forgot to add it.

(b) The Venn diagram illustrate the performance of pupils in a test conducted in English and Mathematics
E= {number of pupil who passed English}
M= {number of pupil who passed Mathematics}
U= {Universal set}.

Details of diagram is as followed:
E=38
M ?
Region 1(A only region) ?
Region 2(both A and B ) = 9
Region 3( B only region)?
Region 4 (neither A nor B) =7
U=70

i. How many pupil passed mathematics?
ii. How many pupil passed only one subject?

Please explain how to calculate step by step it will help alot . Thanks

Answer 2

(a) less improvement as just a number of points, or as a percentage?
points: 30 > 18
percent: 18/30 > 1/2
30.60 = 1/2

(b) E+M-(E&M) = U-7
38+M-9 = 63
Now you can answer the questions.

Answer 3

I have no idea.