Timed Quant Practice - Hard Section

GRE Quant Problem Solving
1

Doubt - Can’t x be both 10 and 100?

Timed Quant Practice - Hard Section 2 Sample Test #4 Question 4

Q- x is a number such that increasing its tens digit by 8 increases x by 80%

Quantity A x
Quantity B 80

2

10 → 90 is an increase by 80%?