4. Shawn stays on the 8th floor.
QUESTIONS 1 TO 10 ARE WORTH
3 MARKS EACH
He takes 1 minute to walk from the
1st to the 2nd floor.
1. What is the mass of the Ball B?
How many minutes does he take to
walk from the 1st to the 8th floor?
(A)
(B)
(C)
(D)
(E)
20 g
30 g
40 g
50 g
None of the above
(A)
(B)
(C)
(D)
(E)
2. Find the sum of
5
6
7
8
None of the above
3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19
(A)
(B)
(C)
(D)
(E)
5. John is cutting a cake.
77
88
99
110
None of the above
3. What number does ⊡ represent?
What is the maximum number of
⊡ + ⊙ = 12
pieces he can get with 3 cuts?
⊙ ×6 = 42
(A)
(B)
(C)
(D)
(E)
3
5
7
9
None of the above
SEAMO 2017 Paper A © TCIMO
(A)
(B)
(C)
(D)
(E)
2
5
6
7
8
None of the above
6. There are 60 minutes in an hour.
By observing the two clocks, how
many minutes has pass passed?
(A)
(B)
(C)
(D)
(E)
8. At least how many cubes are there in
the figure below?
135 min
140 min
145 min
150 min
None of the above
(A)
9
(B)
10
(C)
11
(D)
12
(E)
None of the above
9. There were 31 commuters on the bus.
At the 1st stop, 17 alighted and 14
boarded.
7. Which of the following can be traced,
without drawing over any line twice,
and without lifting your pen?
At the 2nd stop, 5 alighted and 3
boarded.
How many commuters are there now?
Fig. 1
Fig. 2
Fig. 3
(A) 25
(A) Figure 1 only
(B) 26
(B) Figures 1 and 2
(C) 27
(C) Figures 1 and 3
(D) 28
(D) Figure 2 only
(E) None of the above
(E) Figures 2 and 3
3
SEAMO 2017 Paper A © TCIMO
10. 20 children were queuing to buy food. 12. What is the missing number?
Ali was 8th from the front.
th
Emma was 6
1, 2, 3, 5, 8, 13, 21,
from the back.
,…
(A) 32
How many children were queuing
(B) 34
between Ali and Emma?
(C) 55
(D) 56
(E) None of the above
13. 2 3 = 13
2 ⨁ 4 = 20
(A) 3
3⨁4= ?
(B) 4
(C) 5
(A)
22
(D) 6
(B)
23
(E) None of the above
(C)
24
(D) 25
QUESTIONS 11 TO 20 ARE WORTH
4 MARKS EACH
(E)
None of the above
11. There are 31 days in January.
If 5th January is a Friday, which day is 14. The sum of 2 numbers A and B is 36.
28th January?
The difference between A and B is 8.
Given that A is the larger number,
Sun
Mon
Tue
Wed
Thu
Fri
Sat
find A.
(A) 18
(B) 20
(C) 22
(D) 24
(E) None of the above
(A) Sunday
(B) Monday
(C) Wednesday
(D) Thursday
(E) None of the above
SEAMO 2017 Paper A © TCIMO
4
17. Halima wrote on the whiteboard.
15. Hashima has $22. Mingyi has $10.
How much must Hashima give Mingyi
1 2 3 4 5 6 7 8 9 10 11 12 … 64 65
so that he will have three times as
much money as she?
(A)
(B)
(C)
(D)
(E)
How
many
digits
did
she
write
altogether?
12
13
14
15
None of the above
(A)
(B)
(C)
(D)
(E)
120
121
123
125
None of the above
16. How would the 4th figure look like?
18. My mother embroidered 5 flowers on
each side of my handkerchief. There
was a flower on each corner.
st
1
How many flowers did she embroider
altogether?
nd
2
Use the square provided to help you.
?
3rd
4th
(A)
(A)
(B)
(C)
(D)
(E)
(B)
(C)
14
15
16
17
None of the above
(D)
(E) None of the above
5
SEAMO 2017 Paper A © TCIMO
19. ⨀ + ⨀ + ⨀ = 15
QUESTIONS 21 TO 25 ARE WORTH
6 MARKS EACH
⊡ + ⊡ + ⊡ = 18
△ + △ + △ = 12
21. There are 14 children in a party.
△+⊡+⨀=( ? )
Each boy gets 2 balloons.
Each girl gets 3 balloons.
(A) 13
36 balloons are given out in all. How
(B) 14
many girls are there at the party?
(C) 15
(D) 16
(E) None of the above
20. How many triangles are there in the
figure below?
22. Find the value of B in
(A)
13
(B)
14
(C)
15
!
+ !
!
!
!
23. Matthew and his twin brother are
5 years old.
(D) 16
(E)
!
None of the above
Dad is 32 years old.
In how many years will the sum of
their ages be 60?
SEAMO 2017 Paper A © TCIMO
6
24.
What is the missing number?
25. The sum of 18 and 81 form a
palindromic pair. Their sum is 99.
1
+ 8
9
8
1
9
How many other 2-digit palindromic
pairs have a sum of 99?
End of Paper
7
SEAMO 2017 Paper A © TCIMO
SEAMO 2017
Paper A – Answers
Multiple-Choice Questions
Questions 1 to 10 carry 3 marks each.
Q1
B
Q2
C
Q3
B
Q4
C
Q5
D
Q6
A
Q7
B
Q8
A
Q9
B
Q10
D
Questions 11 to 20 carry 4 marks each.
Q11
A
Q12
B
Q13
D
Q14
C
Q15
C
Q16
C
Q17
B
Q18
C
Q19
C
Q20
D
Free-Response Questions
Questions 21 to 25 carry 6 marks each.
© SEAMO 2017
21
22
23
24
25
8
4
6
4
4
Paper A
1