Igcse Model Questions Vol1 2023 Mathematics Question 32

Practice objective / multiple choice question 32 from the 2023 Igcse Model Questions Vol1 Mathematics examination.

Igcse Model Questions Vol1 2023 Mathematics Objective / Multiple Choice Hard Difficulty
Question 32 IGCSE_MODEL_QUESTIONS_VOL1 • 2023 • MATHEMATICS • objective

A box contains red, blue and green balls. The probability of drawing a red ball is twice that of drawing a blue ball, and the probability of drawing a green ball is greater than that of drawing a red ball. When two balls are drawn with replacement, the probability that both balls are of the same colour is \(0.38\). Find the probability of drawing a blue ball, expressed in simplest exact form.

Answer Options

A. \(\frac{15-\sqrt{2}}{70}\)
B. \(\frac{13-2\sqrt{2}}{70}\)
C. \(\frac{15+2\sqrt{2}}{70}\)
Correct Answer D. \(\frac{15-2\sqrt{2}}{70}\)
Correct Answer
D
Correct Option:
\(\frac{15-2\sqrt{2}}{70}\)

About This Question

This is Igcse Model Questions Vol1 2023 Mathematics Question 32. It is one of the objective questions from the 2023 Igcse Model Questions Vol1 Mathematics examination.

Difficulty level: Hard .

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