3. Vanessa uses some coins to form a
1. What is the missing number?
triangle. Each of the 3 corners of the
triangle has a coin. There are 6 coins on
each side of the triangle. How many coins
does Vanessa use to form the triangle?
(A)
19
(B)
23
(C)
17
(D)
30
(A)
12
(E)
21
(B)
13
(C)
14
(D)
15
(E)
16
2. How many triangles are there in the figure
below?
4.
What is the result of
50×101?
(A)
10
(B)
11
(C)
12
(D)
13
(E)
14
5.
(A)
1010
(B)
4350
(C)
5050
(D)
10 100
(E)
50 500
The
sum
of
two
numbers
is
80.
The difference between the two numbers
is 12.
What is the value of the bigger number?
SEAMO 2016 Paper A © TCIMO
2"
(A)
32
(B)
40
(C)
46
(D)
48
(E)
52
6.
Find the sum of
8. In which row is the number 47 if the
1 + !2 + 3 + 4 + ⋯!+ 18 + 19 + 20
(A)
190
(B)
195
(C)
200
(D)
210
(E)
220
numbers continue?
7. How many tiles do you need to cover the
area shown below?
(A)
Row A
(B)
Row B
(C)
Row C
(D)
Row D
(E)
Row E
9. Find the sum of
2! + !22! + !222! + !2222! + !22222!
(A)
2
(B)
3
(C)
4
(A)
24 680
(D)
5
(B)
24 690
(E)
6
(C)
24 700
(D)
24 710
(E)
None of the above
3"
SEAMO 2016 Paper A © TCIMO
10. What is the least number of colours
12. How many ways are there to put 20
needed to colour the petals such that no
oranges into 3 baskets so that each basket
two neighboring petals have the same
has an even number of oranges?
colour?
(A)
2
(B)
3
(C)
4
(D)
5
(E)
6
(A)
8
(B)
9
(C)
10
(D)
11
(E)
None of the above
13. Uncle Sam is going to deliver a parcel to
Point B, beginning his journey from Point A.
How many ways are there for him to reach
11. The time that Jennifer’s party started and
there using the directions
ended is as shown below. How long was
her party in minutes?
(A)
300
(B)
305
(C)
310
(D)
320
(E)
330
SEAMO 2016 Paper A © TCIMO
4"
(A)
20
(B)
21
(C)
22
(D)
23
(E)
24
and
only?
14. How many dots are there in Figure 5?
16. A file in a bookstore costs 70 ¢. Akshta
has 5 10 ¢ coins, 3 20 ¢ coins and 1 50 ¢
coin. How many ways can she pay for the
file without receiving change?
(A)
12
(B)
13
(C)
14
(D)
15
(E)
16
15. Jane wrote on a piece of paper all the
whole numbers from 1 to 59.
1!2!3!4!5!6!7!8!9!10!11!12! … … !57!58!59
(A)
5
(B)
6
(C)
7
(D)
8
(E)
None of the above
17. What is the missing number?
How many digits did she write altogether?!
1, 1, 2, 3, 5, 8, 13, (
(A)
107
(B)
109
(A)
18
(C)
111
(B)
19
(D)
113
(C)
20
(E)
115
(D)
21
(E)
22
5"
), 34, 55, …
SEAMO 2016 Paper A © TCIMO
18. The diagram shows a dartboard. What is
20. Given that
the least number of throws to score 100?
What is the value of
(A)
12
(B)
20
?
(A)
2
(C)
26
(B)
3
(D)
28
(C)
4
(E)
None of the above
(D)
5
(E)
None of the above
19. A
number
is
first
reduced
by
8.
The remainder is then multiplied by 5.
The product is then increased by 8. The
final result is 48.
What is the number?
(A)
14
(B)
15
(C)
16
(D)
17
(E)
None of the above
SEAMO 2016 Paper A © TCIMO
6"
QUESTIONS 21 - 25 ARE FREE RESPONSE
24. Two circles are friendly if they touch each
Write your answer in the free response
section of the ANSWER SHEET provided.
other like the pair shown below:
21. What is the maximum number of slices we
How many “friendly pairs” are there in the
can get by making 3 straight cuts? Each
figure below?
slice does not have to be equal in size.
25. There are 5 blue balls, 4 orange balls and
2 yellow balls in a bag. Sheila is
22. A farmer has 17 chickens and rabbits. He
blindfolded and starts to take the balls out,
counts 52 legs in all. How many chickens
one at a time. At least how many balls
does he have?
must she take out so that, for certain, she
ends up with 4 balls of the same colour?
23. Shaun can walk 60 metres in one minute.
Tim can walk 55 metres in one minute. If
Tim is 35 metres ahead of Shaun, how
many minutes does Shaun take to catch
up with Tim?
END OF PAPER
7"
SEAMO 2016 Paper A © TCIMO