Question

I don’t understand these 2 questions. thank you.

Answer 1

Answer:

  a)  £10.50

  b)  £5.40

Step-by-step explanation:

In this context, "of" means "times".

__

a)

  1/4 × £42 = £(42/4) = £10.50

__

b)

  2/5 × £13.50 = £(2·13.50/5) = £(27/5) = £5.40

_____

Additional comment

The symbol "£" is a currency symbol identifying the units of the associated number. For algebraic purposes, any symbol representing units can be treated as though it were a variable.

Answer 2

Explanation -:

In this question of means multiplication.

Let us start solve this question

Question 1

$\small\rm{ \dfrac{1}{4} \: of \: £ \: 42}$

First we will convert whole number into a fraction

(Any number can be converted to fraction if you use 1 as the denominator)

$\small\sf{ \dfrac{1}{4} \: \times \: \dfrac{42}{1}}$

Now we will multiply the numerators and denominators.

$\small\sf{ \dfrac{42}{4} = £10.50 }$

Question 2

$\small\rm{\dfrac{2}{5} \: of \: £ \: 13.50}$

First we will convert whole number into a fraction

$\small\sf{ \dfrac{2}{5} \times \dfrac{13.50}{1} }$

Now we will multiply the numerators and denominators.

$\small\sf{ \dfrac{27}{5} =£ 5.40 }$