MATHS QUIZ 3

[magpie in the 80's]

1. What is the value of 3x^2 (y[x^3])^2? 3X^8Y^2
2. A car costing $3000 is sold at a loss of 5% on the cost price. What is the selling price? $2850
3. How many solutions are there for 2x - 1 < 20, given that x is an odd number? INFINATE
4. The weights of x, y and z are in the ratio 2:n:4. On a pie chart, the angle corresponding to x is 80 degrees. Find n. 3
5. An ordinary six-sided die is rolled. What is the probability that the score is not 1? 83.3%
6. In a group of 30 boys, 15 like dice games, 12 like card games, x like both and 4 like neither. How many boys like both dice and card games? 1
7. What is the size of an interior angle (in degrees) of a regular pentagon? 108
8. What is the surface area of a cuboid (rectangular prism) with length 20 cm? CANNOT BE DETERMINED
9. What is the number called located on the bottom part of a fraction? DENOMINATOR
10. Anne scores 1/2 as many marks as Betty, and Betty scores 1/2 as many marks as Cathy. If the sum of their marks is 112, how many marks did Anne score? 16
11. Near the beach there is a floating ship. Over the board is hauled down a rope ladder with 10 steps. The distance between every two steps is 30cm. The lowest step lays on the water surface. The tide is coming and every hour the water rises with 15cm. When will the water get to the third step of the ladder? IT WON'T BECAUSE THE SHIP WILL RISE WITH THE TIDE
12. Which of these percentage increases is the greatest?
A) From 13 to 81 B) From 1 to 69 C) All of them are equal D) From 12 to 80 B) FROM 1 TO 69
13. A cube measures y cm on a side. If the surface area of the cube is 294 square centimetres, what is y (correct to 2 decimal places)? 7.00CM
14. Finish this sequence by writing in the next appropriate word ... triangle, quadrilateral, pentagon, __________ ? HEXAGON
15. The length of a rectangle is (x + y) cm and the breadth is (x - y) cm. If y = 2t + 28, where t is the negative square root of 36, find the area of the rectangle. (X^2-256)CM^2
16. A stick (1.12 * 10^0) metres long is divided into 3 parts between Anne, Carol and Ben in the ratio 1:3:4. Find the length of the part of the stick Ben receives. 56CM
17. Given that 2^x = 7, and 2^y = 38, find 2^(x + y). 266
18. What will applying the formula: 'Multiplying the base and the height and then dividing by two' give you an answer for? AREA OF A TRIANGLE
19. What is the arithmetic mean of - 8, (2 - [- 8]), 3, 7 and - 1? 2.2
20. Which area of Mathematics deals with protractors, segments, circumferences and sectors? GEOMETRY

[FattyLumpkin]

8. 2400cm^2
20. Geometry
14. hexagon

[magpie in the 80's]

8. 2400cm^2........INCORRECT
20. Geometry
14. hexagon

OTHER 2 CORRECT FL

[grant j]

Q2 $2850

[magpie in the 80's]

Q2 $2850

CORRECT

[grant j]

Q5 5:6
Q7 135
Q9 DEMONINATION
Q10 16

[magpie in the 80's]

Q5 5:6...............PROBABILITY 83.3%
Q7 135............INCORRECT
Q9 DEMONINATION..............CLOSE ENOUGH

[grant j]

Q10 16
Q11 7 HRS

[grant j]

Q12 Did you forget rest of question. My answer is B

[godoubleblues]

Q7 - 108

[magpie in the 80's]

Q10 16.............CORRECT
Q11 7 HRS...........INCORRECT

[magpie in the 80's]

Q12 Did you forget rest of question. My answer is B

STILL WANT B

[magpie in the 80's]

Q7 - 108

CORRECT

[grant j]

without looking yes!

[magpie in the 80's]

without looking yes!

CORRECT

[grant j]

Hooray i'm pys chic

[Kahuna]

11/ It won't. The ship will rise with the tide
18/ Area of a triangle

[magpie in the 80's]

11/ It won't. The ship will rise with the tide
18/ Area of a triangle

both correct KAHUNA

[Ian]

Q6. one

[magpie in the 80's]

Q6. one

correct