Question

the ratio of bus and train fares from Calcutta to a certain place is 3:4lilawati vidya mandir senior secondary school near railway crossing.If the train fare increases by 20% and bus fare by 10% then what will be new ratio of bus and train fares​

Answer 1

3:10

let 3x be the bus fare

and 4x be the train fare .

$\frac{3x}{20} \times 100 \\ = 3x \times 5 = 15x \\ \frac{5x}{10} \times 100 \\ = 5x \times 10 = 50x$

15:50

=3:10