₹$5400$ is divided among A, B and C in the ratio $3 : 5 : 7$. How much does B receive?

**Step 1 — value of one part.** Total parts $= 3 + 5 + 7 = 15$. One part $= \dfrac{5400}{15} = 360$. **Step 2 — B's share.** B has $5$ parts $= 5 \times 360 = ₹1800$. **Other shares.** A receives $3 \times 360 = ₹1080$, and C receives $7 \times 360 = ₹2520$. These are not B's share.