A student chose a number, multiplied it by 5, then subtracted 138 from the result and got 102. What was the number he chose?	Choose the most appropriate option
A) 48 B) 120 C) 130 D) 140 E) 150

Rationale: "solution : let xx be the number he chose , then 5 ⋅ x − 138 = 102 5 x = 240 x = 48 answer a"
Answer: A