What percentage of 30 is 6?
20
Which of the following sets are equivalent to {a,b,c,d}?
a) {4}
b) {a,b,c}
c) {p,q,r,s}
d) {1,2,3,4,5}
{p,q,r,s}
Simplify the expression -2(x-4)
-2x+8
A plot of land is valued at $18,000. Land tax is 0.7%. What is the total tax to be paid for the land?
$126
What is the volume of a cube with a side 6cm long?
216 cm2
The number 3.14063 to 3 decimal places is
3.141
40 boys
If m*n = (mn-n2)0.5, then what is 6*3?
3
A dress costs $180 usually but has a 10% discount for Christmas. How much does would you save if you bought it now?
$18
How much is 2500 mm in metres?
2.5 m
Express 4 3/8 as a decimal to 3 sf
= 4.375
= 4.38 to 3sf
If U={1,3,5,6,8} and A={3,6}, then the number of elements in A' is
3
The sum of 2 numbers x and y is 18, and the difference is 14. Write two equations to show this.
x + y = 18
x - y = 14
If the simple interest on $800 for 3 years is $54, what is the rate per year?
2.25%
The distance around the edge of a circular pond is 88m. How long is the radius?
14 m
If 3n is odd, which is even:
a) 3n-1
b) 3n-2
c) 3n + 2
d) 3n + 2n
3n-1
What is the median of 1,1,5,5,6,7,7,7,7,8?
6.5
John has x marbles and Max has double that, so he gives Tom 5 of his. How many does Max have now?
2x - 5
A school employs 12 teachers at $26/day and 8 lab technicians at $17/day. What is the mean daily wage, in dollars, of the 20 employees?
$22.40
The lengths of the sides of a triangle are x, 2x and 2x. If the perimeter is 20cm, what is x?
4 cm
If 560 chocolates are shared in party bags in the ratio 2:3:9, the difference between the largest and smallest bags are
280 chocolates
A bag contains 2 red, 4 yellow and 6 blue balls. What is the probability of drawing a blue ball at random?
1/2
3a2 + 4ab + 3b2
A customer pays a deposit of $307 to buy a table on hire purchase. He has to pay 6 monthly instalments of $60 each. What is the total cost he pays for the table?
$667
A man leaves home at 22:15 hrs and reaches his destination at 04:00 hours on the next day in the same time zone. How many hours did his journey take?
5 hours and 45 mins