Skip to content / Đến nội dung
ThichHocToan.com

SASMO 2014 Secondary 1 (Grade 7) Contest

Question 1

Find the next term of the following sequence: 2, 1, 3, 4, 7, ..-

Question illustration

Question 2

Find the product of the highest common factor and the lowest common multiple
of 8 and 12.

Question illustration

Question 3

Solve for xand yin the following equation (x + 7)? + /y —8 = 0.

tia 4

Question illustration

Question 4

The last day of 2013 was a Tuesday. There are 365 days in 2014. In what day of
the week will 2014 end?

Question illustration

Question 5

What is the maximum number of parts that can be obtained from cutting a
circular disc using 3 straight cuts?

Question illustration

Question 6

Aman bought two paintings and then sold them for \$300 each. He made a profit
of 20% for the first painting, but a loss of 20% for the second painting. Overall,
did he make a profit, a loss or break even? If he did not break even, state the
amount of profit or loss.

Question illustration

Question 8

Given that a x b x c = 2014, and a, b and c are positive whole numbers such that
a‹b‹c, how many possible triples (a, b,c) are there?

Question illustration

Question 9

At a workshop, there are 27 participants. Each of them shakes hand once with
one another. How many handshakes are there?

i
a cry
—

Question illustration

Question 10

A perfect number is a positive integer that is equal to the sum of its proper
positive factors. Proper positive factors of a number are positive factors that are
less than the number. For example, 6 = 1 + 2 + 3 is a perfect number because
1, 2 and 3 are the only proper positive factors of 6. Find the next perfect number.

Question illustration

Question 11

The dimensions of a rectangle are x cm by y cm, where x and y are integers,
such that the area and perimeter of the rectangle are numerically equal. Find all
the possible values of x and y.

Question illustration

Question 12

If a and b are positive whole numbers such that a‹b and a’ = b*, find a
possible value for a and for b.
[SS Se eee. feecereeeene SS SSS =a § eed
.

ee ee ee el

Question illustration

Question 13

Find the value of ——!____.
iL
1+2)
4 li i

Question illustration

Question 15

The diagram shows 9 points. Draw 4 consecutive line segments (i.e. the start
point of the next segment must coincide with the endpoint of the previous
segment) to pass through all the 9 points.
a ——————EEeE—eEEEE

Question illustration

Question 16

What are the last 5 digits of the sum 1+ 11 + 111+... + 111...111?

eaten,

2014 digits

Question illustration

Question 17

What is the least number of cuts required to cut 10 identical sausages so that
they can be shared equally among 18 people?

Question illustration

Question 18

Divide the following shape into 4 identical parts.
eo ee Sa ee Ss 1 SS eee Rs :
————S ———————— —————————ee

Question illustration

Question 19

Solve the following equation:
x8 +2x3—x?-2=0.

Question illustration

Question 20

i Find the value of
1 2 3 im qos
2014 i 2014 ss 2014" 2014°
{

Question illustration