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Counting and Basic Probability · Question 37 of 65

Question 37

EasyOriginal question

A jar holds 24 sweets, each either mango or lemon flavoured. The probability of picking a mango sweet at random is 38\frac{3}{8}. How many lemon sweets are in the jar?

Options for question 37

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. Mango sweets =38×24=9= \frac{3}{8} \times 24 = 9.

  2. Lemon sweets =24−9=15= 24 - 9 = 15.

Worth noting

9 is the number of MANGO sweets. 8 and 3 come from dividing 24 by 3 or by 8 instead of multiplying by the fraction.

Concept
Working back from a probability to a count
Typical time
40 s
Your time
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The rule this testsBasic probability
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Ten questions from Counting and Basic Probability, at your own pace.

Practise this chapter →

Ten questions from Counting and Basic Probability, at your own pace.