Number Crunch
What is 15% of 240?
36
Solve for x: 3x + 7 = 22
x = 5
Find the area of a triangle with base 10 cm and height 6 cm
30 cm²
Find the mean of 4, 8, 6, 10, 12
8
What comes next: 2, 4, 8, 16, ___?
32
Simplify: 3/4 + 5/6
19/12
Expand: (x + 4)(x − 3)
x² + x − 12
A right triangle has sides of 3 cm and 4 cm. What is the length of the hypotenuse?
5 cm
A fair die is rolled once. What is the probability of getting an even number?
1/2
What is the next term: 3, 7, 11, 15, ___?
19
Find the HCF and LCM of 18 and 24
HCF = 6, LCM = 72
Factorise: x² − 5x + 6
(x − 2)(x − 3)
Find the sum of the interior angles of a hexagon
720°
Find the median of 3, 7, 9, 2, 5, 8, 1
5
The nth term of a sequence is 3n + 2. What is the 10th term?
32
A price rises by 20%, then the new price falls by 20%. What percentage of the original price is the final price?
96%
Solve simultaneously: x + y = 10, x − y = 4
x = 7, y = 3
A rectangle has a length of 12 cm and a diagonal of 13 cm. What is its width?
5 cm
Two fair coins are tossed. What is the probability that both land heads?
1/4
A number is increased by 25% and becomes 80. What was the original number?
64
Evaluate: 2⁵ − 3³ + √49
12
Solve: 2(x + 3) = 3(x − 1) + 5
x = 4
A circle has a radius of 7 cm. Find its area using π = 22/7
154 cm²
A bag has 5 red and 3 blue balls. Two balls are drawn without replacement. What is the probability that both are red?
5/14
The ratio of boys to girls in a class is 3:5. If 6 boys and 2 girls join the class, the ratio becomes 3:4. How many boys and girls were there originally?
18 boys and 30 girls