An OSU senior is studying for exams in psychology and economics. The student has time to read 50 page of psychology and 10 page of economics. Or, in the same amount of time the student could read 30 page of psychology and 70 page of economics. How many pages of economics could the student could read, if she spent all her time on reading economics and none on psychology?

Group of answer choices

160

60

80

260

neither one is correct