LET'S TRY MATHS QUIZ 2 (ONE FOR THE TEACHERS)

[magpie in the 80's]

1. A kite's diagonal (AC) is 4.5 cm long. The other diagonal (BD) is 3.5 cm longer than the diagonal AC. What is the area of the kite ABCD? 18 CM^2
2. Simplify: 5x/3 * 6x/15 2/3X^2
3. A jar contains 5 blue marbles, 8 red marbles, and 3 black marbles. Tom picks a marble at random from the jar and then John draws at random another marble from the jar. What is the probability that Tom draws a red marble and John draws a blue one? 1/6
4. What will be the diameter of a circle with circumference 12 inches? 3.82 INCHES
5. Tom scores 4.5 out of 5 in a maths test. What is his percentage mark? 90%
6. A radio is bought for $16 and sold for $18. What is the percentage profit? 12.5%
7. What do you call two angles on a straight line that add up to 180 degrees? SUPPLEMENTRY
8. The angles of a triangle have the ratio 5:7:6. What is the product of the smallest and largest angle? 3500
9. A rectangular box measures 30 cm by 20 cm by 18 cm. How many cubic centimetres of rice can be put in the box? 10800
10. Jill bought a pair of jeans for $5. She liked those jeans so she decided to buy 5 more pairs of jeans. How much does she need to earn to buy 5 more pairs of jeans? $25
11. An angle measuring 60 degrees is measured as 62 degrees. What is the percentage error correct to 3 significant figures? 3.33%
12. In a group of x children, 10 like Maths and 25 like English. 7 like both subjects and 17 like neither. How many children are there in the group? (Hint: If 10 children like Maths, this does not mean ONLY 10 children like Maths.) 45
13. A box contains 20 fresh fruits: some mangoes and some grapes. If there are 8 more mangoes than grapes, how many mangoes are there? 14 MANGOES / 6 GRAPES
14. A card is drawn at random from an ordinary pack of playing cards. What is the probability that it is neither a face card nor a black card? 5/13
15. What is the value of 64^(2/3)? 16
16. The area of a face of a cube is 81 cm^2. What is the volume of the cube in cubic centimeters? 729CM^3
17. What is the supplement of ([dozen sixes] + 80)degrees? 28 DEGREES
18. A man needs to sell a cuckoo-clock originally costing $300 to make an exact profit of 10%. How much should he sell it for? $330
19. If 5/8 of the children in a school are boys and the school consists of 2400 students, how many girls are there? 900
20. Jack's average mark after 8 results was 54. This dropped to 49 when he received his ninth result which was for Maths. What was his Maths mark?9

[CK]

5. 90%
6. 12.5%
10. $25
11. 3.33%
18. $330
19. 900
20. 9

[magpie in the 80's]

5. 90%
6. 12.5%
10. $25
11. 3.33%
18. $330
19. 900
20. 9

ALL CORRECT CK

[CK]

12. 52 children

13. 14 mangoes, 6 grapes

[magpie in the 80's]

12. 52 children........INCORRECT

13. 14 mangoes, 6 grapes...........CORRECT

[spell_check]

3 - 1:2 for red and 1:3 for blue

[rogernumber10]

14 - 5/13

[magpie in the 80's]

3 - 1:2 for red and 1:3 for blue

INCORRECT SPELLY
there is only the one answer

[magpie in the 80's]

14 - 5/13

correct

[rogernumber10]

3.
1/2 for Tom and then for John either 1/3 if Tom took a red / black marble with his pick or 4/15 if Tom took a blue marble with the first pick.

[rogernumber10]

8 - 3000 (sorry, 50 x 60)

[magpie in the 80's]

3.
1/2 for Tom and then for John either 1/3 if Tom took a red / black marble with his pick or 4/15 if Tom took a blue marble with the first pick.

COMBINED THE ANSWER GIVEN IS 1/6

[magpie in the 80's]

8 - 3000 (sorry, 50 x 60)

INCORRECT

[spell_check]

3 - 1:2 for red and 1:3 for blue

INCORRECT SPELLY
there is only the one answer

Oops, thought it was a two part one - and I read it closely too...

[Kahuna]

16/ 729 cm^3
4/ 37.6 inches approx
Magpie you have all the answers so here is a question for you (Kahuna's Maths Quiz 2).........
Q1. Assume the Earth is a perfect sphere 20,000km in circumference and you have a piece of string that is exactly 20,000km in length. How much more string do you need to circle the Earth 1 metre above the surface?

[Professor]

1. 18 cm^2
2. 2/3x^2
4. 3.8197 inches
7. supplementary angles
8. 3500
9. 10800 cm^3
12. 59
15. 16
16. 729 cm^3
17. 28 degrees

[magpie in the 80's]

16/ 729 cm^3....................correct
4/ 37.6 inches approx................incorrect
Magpie you have all the answers so here is a question for you (Kahuna's Maths Quiz 2).........
Q1. Assume the Earth is a perfect sphere 20,000km in circumference and you have a piece of string that is exactly 20,000km in length. How much more string do you need to circle the Earth 1 metre above the surface?

get back to you on that KAHUNA

[magpie in the 80's]

1. 18 cm^2
2. 2/3x^2
4. 3.8197 inches
7. supplementary angles
8. 3500
9. 10800 cm^3
12. 59....................incorrect
15. 16
16. 729 cm^3
17. 28 degrees

all others correct PROFESSOR

[magpie in the 80's]

1 Q LEFT

[Professor]

12. 45