Given below are 2 statements:Statement I: The average of A, B and C

1.	Given below are 2 statements:Statement I: The average of A, B and C is 27. Statement II: The average of B, C and D is 25. The value of D is 4.To find the value of A, which option is correct given below. 1. Both statements I and statement II are required.2. Both statements I and statement II are not required3. Statements I is required but statement II is not required.4. Statement I is not required but Statements II is required.
Answer» Correct Answer - Option 1 : Both statements I and statement II are required. Formula Used: Average = Sum of all items / Number of items Calculation: The average of A, B and C = 27 ⇒ 27 = (A + B + C)/3 ⇒ 81 = (A + B + C) ...................(1) The average of B, C and D = 25 ⇒ 25 = (D + B + C)/3 ⇒ 75 = (D + B + C) ....................(2) The value of D = 4 ....................(3) ⇒ B + C = 75 - 4 = 71 From (1), A + 71 = 81 ∴ A = 10 The correct option is 1 i.e. Both statements I and statement II are required.

Given below are 2 statements:Statement I: The average of A, B and C is 27. Statement II: The average of B, C and D is 25. The value of D is 4.To find the value of A, which option is correct given below. 1. Both statements I and statement II are required.2. Both statements I and statement II are not required3. Statements I is required but statement II is not required.4. Statement I is not required but Statements II is required.

Answer» Correct Answer - Option 1 : Both statements I and statement II are required.

Formula Used:

Average = Sum of all items / Number of items

Calculation:

The average of A, B and C = 27

⇒ 27 = (A + B + C)/3

⇒ 81 = (A + B + C) ...................(1)

The average of B, C and D = 25

⇒ 25 = (D + B + C)/3

⇒ 75 = (D + B + C) ....................(2)

The value of D = 4 ....................(3)

⇒ B + C = 75 - 4 = 71

From (1), A + 71 = 81

∴ A = 10

The correct option is 1 i.e. Both statements I and statement II are required.