ALPHA
The bearing of A from town B is 1350. What is the bearing of town B from A?
3150
expand (2m + n)(6e - f)
12me - 2mf + 6ne - nf
What is the range of the following scores: 17.1, 50.3, 6.27, 33.2, 15.9, 66.05 and 24.
44.03
Write 3969 as a product of its prime factors.
34 x 72
Simplify the standard form: 9.13 x 104 + 72.45 x 103
1.6375 x 105
A goat is tied to a rope on a field of length 7 cm. Find the maximum area of grass the goat can feed on?
[ take pi = 22/7]
154 cm2
A teacher divides 405 gifts among the best three students in the ratio 15:9:3. How many gifts does each get?
225, 135, 45
If 1/u + 1/v = 1/f, find f when u = 10 and v = 15.
6
The mean mass of a group of 30 students was calculated to be 48.5 kg. However, it was discovered that one of them has been weighed 92 kg instead of
29 kg. What is the correct mean?
46.4kg
Three-quarters of a number added to two and a half of that number gives 13. Find the number.
4
The sum of angles of a regular polygon is 25200. How many sides does the polygon have?
16
If 2x + y = 4 and x - y = 5.
Find the value of y
y = - 2
Simplify {0.9- [2.3 - 3.2 - (7.1 - 5.4 - 3.5)]}
0
Find the product of 0.0409 and 0.0021, leaving your answer in standard form.
8.589 x 10-5
What salary should a person receive so that she would take home $2000 after deducting 20% for taxes?
$1600
Find the rational number lying between 5/6 and 6/7.
71/84
The result of adding 15 to x and dividing the answer by 4 is the same as taking x from 80. Find x.
63
If the mean of 3, 4, 5, 6, and 7 is k. What is the mean of 6, 8, 10, 12 and 14?
2k
The LCM of two co-prime is 638. One number 22, find the other number.
29
A man spent 3/4 of his salary on food, rent and transport and 1/10 of the remainder on clothes. What percentage of his salary is left?
22.5%