iGCSE Maths Quiz 1

Question 1

What is the multiplier for a 20% reduction?

Accepted Answer

0.8

Question 2

I want to find the length AC. Which trigonometric function can I use?

Accepted Answer

Cosine Rule

Question 3

The cosine rule is a² = b² + c² - 2bc cos A. What is the correct rearrangement to find cos A?

Accepted Answer

cos A = (a²-b²-c²)/-2bc

Question 4

Which of the following is the correct Arithmetic Sequences Nth Term formula?

Accepted Answer

a + (n-1)d

Question 5

A sports shop has a 10% sale. The cricket bat I want is now £100. What was the original price?

Accepted Answer

None of the answers shown

Question 6

Increase £280 by 20%

Accepted Answer

£336

Question 7

What is the nth term of the numbers 3, 7, 11, 15, 19

Accepted Answer

4n-1

Question 8

A cricket bat now costs £50. Tomorrow it will cost £60. What will be the percentage change?

Accepted Answer

20% increase

Question 9

Is a triangle with side lengths 4cm, 7cm and 11cm right-angled?

Accepted Answer

No

Question 10

Write the following as a percentage. 15 out of 20.

Accepted Answer

75%

Question 11

From the diagram - what is Cats ∩ Dogs'

Accepted Answer

10

Question 12

Which of the following trigonometry functions can be used to find angle b?

Accepted Answer

Sine Rule

Question 13

Complete the square for x²+6x+4

Accepted Answer

(x+3)²-5

Questions 13