The number of seats allocated for Mathematics, Physics, and Biology in a school are in the ratio 5:7:8. If these seats are increased by 40%, 50%, and 75% respectively, what will be the new ratio of seats?

Explanation

Initially, the seats are in the ratio 5:7:8, which can be represented as 50:70:80 for easier calculation. After the increase: Mathematics seats = 50 × 1.40 = 70, Physics seats = 70 × 1.50 = 105, Biology seats = 80 × 1.75 = 140. The new ratio is 70:105:140, which simplifies to 14:21:28, and further reduces to 2:3:4.