Alpha
Beta
Gamma
Delta
10

Simplify x2-1

(x-1)(x+1)

10

Find the median of the set of numbers 12, 15, 13, 14, 12, 12

12.5

10

The bearing S400E is the same as

1400

10

simplify x-1

1/x

20

Simplify 71.5 x 491.75

75

20

Express 1975 correct to 2 significant figure

2000

20

What is the probability of having an odd number in single toss of a fair die?

1/2

20

solve 4x=8

2

30

Find the roots of the equation 2x2-3a-27=0

9/2 or -3

30

y varies directly as w2. When y= 8, w=6. find y when w=3

2

30

In a survay of 50 newspaper readers, 40 read punch and 30 read Guadian, how many read both papers?

20

30

Approximate 0.00003367 to 3 significant figure

0.0000337

40

A fair die is tossed once. what is the probability of obtaining neither 5 nor 2

2/3

40

If gt-k-w=0, make g the subject of the formula

k + w/t

40

A point X is on the bearing 3420 from a point Y. what is the bearing of Y from X?

1620

40

Find the gradient of the line joining the point (5,6) and Q(3,3)

3/2

50

Find the nth term of a sequence 2, 4, 6,...

2n

50

Evaluate 1.25 x 0.025/0.05

0.5

50

Simplify x0

1

50

Find the midpoint of S(-5,4) and T(-3,-2)

-4,1