Worksheetsmath olympiad 5 reviewer
Total questions: 40
Worksheet time: 36mins
A number multiplied by 5 and divided by 3 gives 40. What is the number?
24
8
10
6
The greatest even number less than 399 is divided by 10.
What is the remainder?
9
3
8
99
Write “forty-eight thousandths” as a decimal.
0.018
0.48
0.048
0.0048
A tank is 1/ 6 full of gasoline. When 2 liters are added, the tank becomes 1 /4 full. What is the total capacity of the tank?
14 liters
24 liters
24 liters
24 liters
How many grams are there in 0.05 kilogram?
50
60
100
90
The digits 1, 2, 3, 4, and 5 are each used once to composed a five-digit number abcde, such that the three-digit number abc is divisible by 4, bcd is divisible by 5, and cde is divisible by 3. What is the value of the digit a?
1
2
3
4
Cupcakes are sold in packages of 10 and 15. If you need exactly 100 cupcakes for a children’s party, what is the smallest number of both packages than you need to buy?
4 packages each
5 packages each
2 packages each
6 packages each
Two squares with perimeter of 36 cm each are placed side by side. What is the perimeter of the resulting figure?
50
54
45
30
A number multiplied by 5 and divided by 3 gives 40. What is the number?
4
5
10
24
After 5 tests, a pupil’s average was 80. After taking an examination which was counted as two test grades, his average dropped to 76. What was his grade on that examination?
75
66
88
90
A license number plate consists of exactly 4 digits. How many different plates may be constructed in which the sum of the digits is 35 of greater?
3
5
10
12
At a children’s party, Kim lost one-fourth of the number of his toys. He then gave away 8 of his remaining toys as gifts. One-half of the original number of his toys were left. How many toys had he to start with?
15
25
30
32
I am a three-digit number. All my digits are different. My tens digit is less than 1. I am divisible by 5. My ones digit is greater than my hundreds digit. I am also divisible by 3. What numbers can I possibly be?
425 and 125
305 and 205
405 and 105
505 and 205
In isosceles triangle PQR, the length of PQ is three times the length of PR. If the perimeter of the triangle is 35 cm, what is the length of PQ?
10 cm
10 cm
15 cm
5 cm
A grocer buys oranges at 3 for ₧25 and plans to sell them at 5 for ₧45. How many oranges must he sell in order to make a profit of ₧300?
550
450
250
350
A rectangle is 24 cm long and 15 cm wide. Its length is decreased by 6 cm. How many centimeters must the width be increased to keep the same area?
2
5
10
3
A wire 60 cm in length is cut into two parts in the ratio 2 ∶ 1. Each part is bent to form a square. What
is the total area of the two squares?
125 cm2
152 cm2
112 cm2
112 cm2
The school’s math team is made up of pupils from Grades 4, 5, and 6 only. Seven students are from Grade 4, eleven students are from Grade 5, and one-fourth of the entire team are from Grade 6. How many students are on the team?
12
36
24
20
The Grade 5 pupils are going on a field trip. If each bus takes 45 pupils, there will be an excess of 10 pupils who would not be able to board the bus. If each bus takes 50 students, there will be an extra bus. How many buses is the school hiring?
10
15
12
20
A bag contains 20 balls: 5 are red, 5 are blue, 5 are green, and 5 are yellow. What is the least number of balls a blindfolded person must get to be certain of getting at least one of each color?
6
16
18
24
If 85% of the 60 questions in a mathematics test are on problem solving, how many questions are on problem solving?
51
25
15
25
Sam has 5-peso coins and 10-peso coins amounting to ₧120. The total number of his 5-peso coins is twice the number of the 10-peso coins. How many 5-peso coins does Sam have?
18
12
24
20
A box whose volume is 80 cm3 has length, width, and height in the ratio of 1 ∶ 2 ∶ 5. If each of the length, width, and height is increased by 2 cm, by how much will be the increase in volume?
208 cm3
218 cm3
220 cm3
200
What must have been the average score of Mira in her first three tests so that her average score in her four tests was 86 when she scored 95 in her fourth test?
80
83
75
100
What is the ratio of 400 cm to 4 /5 m in simplest form?
1:5
5 ∶ 2
5 ∶ 5
5 ∶ 1
A clock reads 5o’clock. What is the degree measure of the angle formed by the hands of the clock?
150 ○
140 ○
110 ○
120 ○
On a sale, the price of a shirt became 1 /4 as large as its original price. What is the percent of decrease in the price of the blouse?
80%
75%
70%
95%
A box has length, width, and height in the ratio of 1 ∶ 2 ∶ 4. Its volume is 64 cm3 . If each of its length, width, and height is increase by 2 cm, what will be the new volume of the box in cubic centimeters?
240
140
60
160
Anne has 60 guavas and 18 bananas in her basket. After giving Frances some guavas and replacing them with bananas, she found out that there were 12 more guavas than bananas. How many guavas were replaced with bananas?
20
15
25
30
The sides of a triangle have lengths in the ratio 3 ∶ 7 ∶ 12. The perimeter of the triangle is 44 cm. What is the length of the longest side?
20 cm
30 cm
24 cm
25 cm
Sam has 5-peso coins and 10-peso coins amounting to ₧120. The total number of his 5-peso coins is twice the number of the 10-peso coins. How many 5-peso coins does Sam have?
12
14
10
16
If 85% of the 60 questions in a mathematics test are on problem solving, how many questions are on problem solving?
51
45
40
25
How many 3 cm by 3 cm tiles can cover a rectangular surface with dimensions 9 cm by 9 cm?
10
7
9
3
A photocopier can print 116 copies every 4 minutes. How many copies can it print in 1.25 hours?
2275
2175
2575
2075
Jaren collects coins. Every day, she gets 6 additional coins. On every fourth day, she gives 4 coins to her friend. If Jaren started with 24 coins on which day will Jared have exactly 70 coins?
9th day
10th day
19th day
3th day
On a sale, the price of a blouse became five times smaller than its original price. What is the percent of decrease in the price of the blouse?
55%
90%
75%
80%
If you buy a ₧650 shirt at 10% discount, how much will you pay?
₧385
₧485
₧585
₧595
When Alex plays basketball, he makes 5 out of every 6 shots. If he tries 30 shots, how many shots will he make?
20
25
30
35
How many prime numbers are there from 50 to 100?
50
20
10
15
The Grade 5 pupils are going on a field trip. If each bus takes 45 pupils, there will be an excess of 10 pupils who would not be able to board the bus. If each bus takes 50 students, there will be an extra bus. How many buses is the school hiring?
15
12
10
8
