Evaluate 1/4 of 48 + 6 × 3.

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Simplification & Approximation · Question 4 of 71

Question 4

EasyOriginal question

Evaluate $\frac{1}{4}$ of $48 + 6 \times 3$ .

16.5Correct answerYour answer30Correct answerYour answer40.5Correct answerYour answer54Correct answerYour answer

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CorrectNot quiteAnswer B

Correct answer: B

'Of' means multiply and is done before the other operations here: $\frac{1}{4}$ of $48 = 12$ .
Next the multiplication: $6 \times 3 = 18$ .
Then $12 + 18 = 30$ .

Worth noting

Taking $\frac{1}{4}$ of the whole of $48 + 18$ gives 16.5; taking $\frac{1}{4}$ of $48 + 6$ and then multiplying by 3 gives 40.5; adding 12 and 6 before multiplying gives 54. 'Of' binds only to the number right after it.

Concept: Treating 'of' as a multiplication done early
Typical timeTypical: 35 s
Your timeYours: —

The rule this testsOrder of operations (BODMAS)

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Evaluate 14\frac{1}{4}41​ of 48+6×348 + 6 \times 348+6×3.

Explanation

Evaluate $\frac{1}{4}$ of $48 + 6 \times 3$ .