The ratio of Marta's hourly pay to Khalid's hourly pay is 6:5
Both Marta and Khalid get an increase of £1.50 in their hourly pay.
The ratio of Marta's hourly pay to Khalid's hourly pay after this increase is 13:11
Work out the hourly pay before the increase for Marta and for Khalid.

Please help ;-;