The marks obtained by Jessica are shown below. Jenny scored 15% more marks in English than Jessica. What was Jenny's score in English?
Here the horizontal axis is x axis which represents subjects and vertical axis is y axis which represents marks. x axis represents and the scale for y axis 1 cm = 10 marks.
From the graph we can see that Jessica's score for English is 60.
Jenny's score in English is 15% more than Jessica's.
⇒60+15% × 60=60+15100×60
∴ Jenny's score in English =69