Question Details

20.4×5-32.40×5= ?
What will come in place of the question mark (?) in the following questions?

Options

A

-60

B

60

C

20

D

-20

E

65

Show Answer

Correct Answer :

Option A

-60

Solution :

The correct answer is -60.

Step-by-step explanation:

We need to evaluate the following numerical expression:

20.4 × 5 - 32.40 × 5 = ?

Method 1: Using the Distributive Property
Notice that both terms share a common multiplier of 5. We can factor out 5 from the expression:

20.4 × 5 - 32.40 × 5 = ( 20.4 - 32.40 ) × 5

Next, subtract the terms inside the parentheses:

20.4 - 32.40 = - 12

Now, multiply this result by 5:

- 12 × 5 = - 60

Method 2: Direct Multiplication
Alternatively, calculate each multiplication term separately:

20.4 × 5 = 102

32.40 × 5 = 162

Now, perform the subtraction:

102 - 162 = - 60

Therefore, the value that replaces the question mark (?) is -60.

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