Ratio and proportion
Number systems · Mathematics
Study notes
Q: Divide ₹900 in ratio 2:3:4. Check if 3:4 = 6:8. Step 1: Total parts = 2 + 3 + 4 = 9. Step 2: One part = 900 ÷ 9 = ₹100. Step 3: Shares: 2×100 = ₹200, 3×100 = ₹300, 4×100 = ₹400. Step 4: Check 3:4 = 6:8: cross-multiply 3×8 = 24, 4×6 = 24. Equal → proportional. ✓