Solution:Given: “R” represents one of the following operations such as; addition, subtraction, multiplication or division.
To find Value of 5R2, which means which operation does “R” holds.
Analysis of statement 1: 2R5 = 10Let’s plug in the different operations for “R” and let’s see which yields 10 as the answer.
2R5 = 2 + 5 = 7 ≠10
2R5 = 2 - 5 = -3 ≠10
2R5 = 2 × 5 = 10 =10
2R5 = 2 ÷ 5 = 0.4 ≠10
From statement 1 it is clear that “R” hold multiplication operation, therefore we can get the answer for 5R2. Hence statement 1 is sufficient.
Analysis of statement 2: 5R5 = 25Let’s plug in the different operations for “R” and let’s see which yields 25 as the answer
5R5 = 5 + 5 = 10 ≠25
5R5 = 5 - 5 = 0 ≠25
5R5 = 5 × 5 = 25 = 25
5R5 = 5 ÷ 5 = 1 ≠25
From statement 2 it is clear that “R” hold multiplication operation, therefore we can get the answer for 5R2. Hence statement 2 is sufficient.
The correct answer option is “D”.