IGDTUW 2025 — Mathematics PYQ

Solving:

• Independent events ke liye: $P(A\cap B)=P(A)\cdot P(B)=0.4p$.

• Formula: $P(A\cup B)=P(A)+P(B)-P(A\cap B)$.

• $0.6=0.4+p-0.4p$.

• $0.2=0.6p⟹p=\frac{0.2}{0.6}=\frac{1}{3}$.

Sahi Option: (b) $1/3$