There are some people in party, 1/3rd left the party . Then 2/5th of the remaining left the party , then 2/3rd of the remaining left the party . At last 10 were remaining . How many people were in total ?	Choose one:
A) 45
B) 27
C) 28
D) 26
E) 75

Rationale: "sol : 45 if x persons were there in total , then x × ( 1 – 1 / 3 ) × ( 1 – 2 / 5 ) × ( 1 – 2 / 3 ) = 10 x × 2 / 3 × 3 / 5 × 1 / 3 = 10 x = 75 answer : e"
Answer: E