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. `60xx15+33xx32`
B. `16xx66+30xx30`
C. `49cdot5 xx40 – 120%` of 20
D. `22xx60+12xx53`

Answer

To solve the problem of identifying which part among A, B, C, and D is not equal to the others, we will follow these steps:

### Step 1: Evaluate Part A
We will calculate the value of Part A:
- Part A: \( 33 \times 32 = 1056 \)

### Step 2: Evaluate Part B
Next, we will calculate the value of Part B:
- Part B: \( 16 \times 66 = 1056 \)

### Step 3: Evaluate Part C
Now, we will calculate the value of Part C:
- Part C: \( 49.4 \times 40 = 1976 \)
- Then we subtract 120% of 24 from 1976:
- \( 120\% \text{ of } 24 = 28.8 \)
- Therefore, \( 1976 - 28.8 = 1947.2 \)

### Step 4: Evaluate Part D
Finally, we will calculate the value of Part D:
- Part D: \( 22 \times 60 = 1320 \)
- Then we add \( 12 \times 53 = 636 \):
- So, \( 1320 + 636 = 1956 \)

### Step 5: Compare the Values
Now we compare the values of all parts:
- Part A = 1056
- Part B = 1056
- Part C = 1947.2
- Part D = 1956

### Conclusion
From the calculations, we can see that:
- Parts A and B are equal (1056).
- Part C is not equal to A and B (1947.2).
- Part D is also not equal to A and B (1956).

Thus, the part that is not equal to the others is **C**.

If all four parts were equal, the answer would be **E**.