math 6 olympiad reviewer

What is the greatest common factor of 91, 65, 338?

• 13

• 9

• 7

• 11

What is the least common multiple of 147 and 63?

• 6

• 6

• 2

• 3

There are 10 black balls and 15 red balls in the urn. If you take out a ball, what is the probability that it is black?

• 1/5

• 2/5

• 1/10

• 1/15

Three numbers are in the ratio of 2:3:5. If the product of 3 numbers is 810, what is the largest number?

• 15

• 10

• 5

• 3

Simplify

• 5/36

• 36/5

• 2/5

• 1/6

40% of what number is 25% of 40?

• 30

• 25

• 5

• 30

The area of a triangle is 50 sq. units. If the height of triangle is equal to the length of the base, what is the measure of the height?

• 5units

• 15units

• 10 units

• 25units

Elena is jogging in a circular track with a diameter of 35 meters. If she ran 5 laps, what is the total distance she traveled?

• 150m

• 350 m

• 250 m

• 550m

The price tag of t-shirt worth ₱350.00. It has a mark down of 20%. If you have ₱500.00-bill, how much money left to you if will buy the shirt?

• P 120.00

• P 150.00

• P 225.00

• P 220.00

What is 0.151515… if written in fraction?

• 1/5

• 1/15

• 5/33

• 1/3