Mathematics 8300: Number Topical Past Paper Questions

Fatima is choosing a 4-digit code. Each digit is a whole number from 0 to 9. She decides all her digits will be odd numbers no digits will be repeated. How many different codes can she make?

Kiran paid Income Tax and National Insurance on her annual salary. Income Tax 0% of the first £12570 of her annual salary 20% of the rest of her annual salary National Insurance 0% of the first £9880 of her annual salary 13.25% of the rest of her annual salary Kiran paid £5186 In…

Q and R are two numbers. As a product of prime factors, $$ \mathcal{Q}=2^{3}\times3\times a^{3} $$ $$ R=2^{4}\times3^{2}\times a^{2} $$ The highest common factor (HCF) of Q and R is 4056 Work out the value of a. [2 marks] $ a= $ ___ Work out the lowest common multiple (LCM) of Q…