Three of the four parts lettered (A) (B) ( C) and (D) are exactly equal. You have to find that part which is not equal to the other three. If all the four parts are equal, that the answer is (E).

Options

A. `230%` of 280+56
B. `6cdot5xx240-2cdot5xx344`
C. `280%` of 280-104
D. 2816-1876-240

Answer

To solve the problem, we need to identify which of the four parts (A, B, C, D) is not equal to the other three. If all parts are equal, we will indicate that with the answer (E).

### Step-by-step Solution:

1. **Identify the Parts**: We have four parts labeled A, B, C, and D.

2. **Compare the Parts**: We need to compare the values of A, B, C, and D to see which one is different from the others.

3. **Check for Equality**:
- Compare A with B.
- Compare A with C.
- Compare A with D.
- Compare B with C.
- Compare B with D.
- Compare C with D.

4. **Determine the Odd One Out**:
- If A = B = C but A ≠ D, then D is the odd one out.
- If A = B = D but A ≠ C, then C is the odd one out.
- If A = C = D but A ≠ B, then B is the odd one out.
- If B = C = D but B ≠ A, then A is the odd one out.

5. **Check for All Equal**: If all comparisons show that A = B = C = D, then we conclude that the answer is (E).

### Conclusion:
After performing these comparisons, we will find the part that is not equal to the other three or confirm that all parts are equal.