Problems And Answers PHIMO MOCK 2020 PRIMARY 5

Now in its 1st year, the PhIMO is being spearheaded by the Math Olympiads Training League Philippines, Inc. (MOTLI). (sc : www.phimo-ph.com)

Berikut ini Soal dan Kunci Jawaban PHIMO MOCK EXAM 2020, PRIMARY 5

1. Jackson needs to set up 90 chairs in rows such that each row must have an equal number of chairs and there must be more than 4 rows. How many ways can Jackson arrange the chair?

(a) 7
(b) 8
(c) 9
(d) 11

2. If ℃ = 5/9 (℉ − 32)which among the following is the hottest?

(a) 45℃
(b) 110℉
(c) 20℃+ 70℉
(d) 77℉+ 13℃

3. Two equilateral triangles have sides 4 units and 6 units, respectively. Determine the ratio of the area of the smaller triangle to the area of the bigger triangle.

(a) 4/9
(b) 2/3
(c) 3/2
(d) 1/3

4. Given that a and b are both integers, find the value of a that gives the maximum value of b satis-fying the equation

\(b=\frac{10a}{10-a}\)

(a) 10
(b) 11
(c) 9
(d) 5

5. Let a, b and c be positive integers such that a + b = 7 and b + c = 15. Find the sum of the great-est and smallest possible values of a + c.

(a) 28
(b) 22
(c) 30
(d) 32