Question

. 2. In a science test, Devi scores 15 marks more than Lixin. If Devi obtains twice as many marks as Lixin, find the number of marks Lixin obtains. Fruation​

Answer 1

Answer:

15 marks

Step-by-step explanation:

Let Devi's score be x

Let Lixin's score be y

x = 2y

x = y + 15

Changing x into 2y

2y = y + 15

2y - y = 15

y = 15