JAMIA 2026 — Mathematics PYQ

1. Calculate the Total Number of Outcomes (Sample Space):

The total number of marbles in the box is the sum of all blue, white, and red marbles:

$$\text{Total Marbles}=5\text{ (blue)}+2\text{ (white)}+3\text{ (red)}=10$$

2. Identify the Number of Favorable Outcomes:

We want to find the probability of picking a red marble.

$$\text{Number of Red Marbles}=3$$

3. Apply the Probability Formula:

The basic formula for probability is:

$$\text{Probability (P)}=\frac{\text{Number of Favorable Outcomes}}{\text{Total Number of Outcomes}}$$

Substituting our values into the formula:

$$\text{P(Red)}=\frac{3}{10}$$

Correct Answer

Option (d) 3/10