Question
Download Solution PDF6893.5 × 603.3 × 0.3019 is equal in value to:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Expression: 6893.5 × 603.3 × 0.3019
Formula used:
For two products to be equal, the overall decimal place shifts must balance out.
Calculations:
Original expression's decimal shifts (relative to integer):
6893.5 (1 place left) × 603.3 (1 place left) × 0.3019 (4 places left)
Total left shift = 1 + 1 + 4 = 6 places.
Let's examine the options for a total 6-place left shift:
Option 1: 6.8935 (4 left) × 60.33 (2 left) × 30.19 (2 right)
Net shift = 4 + 2 - 2 = 4 places left. (Incorrect)
Option 2: 6.8935 (4 left) × 6.033 (3 left) × 301.9 (1 right)
Net shift = 4 + 3 - 1 = 6 places left. (Correct)
Wait, let me re-evaluate the shifts from the original numbers, not relative to integers. This is about comparing the original product to the product of the options.
Let P = 6893.5 × 603.3 × 0.3019
Option 1: 6.8935 × 60.33 × 30.19
(6893.5 / 1000) × (603.3 / 10) × (0.3019 × 100)
= P × (1/1000) × (1/10) × 100 = P × (100/10000) = P / 100 (Incorrect)
Option 2: 6.8935 × 6.033 × 301.9
(6893.5 / 1000) × (603.3 / 100) × (0.3019 × 1000)
= P × (1/1000) × (1/100) × 1000 = P × (1000/100000) = P / 100 (Incorrect)
Option 3: 68.935 × 6033 × 3.019
(6893.5 / 100) × (603.3 × 10) × (0.3019 × 10)
= P × (1/100) × 10 × 10 = P × (100/100) = P × 1 (Correct)
Option 4: 689.35 × 603.3 × 301.9
(6893.5 / 10) × 603.3 × (0.3019 × 1000)
= P × (1/10) × 1 × 1000 = P × (1000/10) = P × 100 (Incorrect)
∴ The correct answer is option 3.
Alternate Method
Given:
Expression: 6893.5 × 603.3 × 0.3019
Formula used:
When we shift the decimal point in all numbers such that the overall scaling factor remains 1, the product stays the same.
Calculation:
Original numbers:
6893.5 = 68.935 × 100
603.3 = 6033 ÷ 10
0.3019 = 3.019 ÷ 10
Let's adjust them oppositely to balance the product:
6893.5 ÷ 100 = 68.935 \(\rightarrow\) ÷100
603.3 × 10 = 6033 \(\rightarrow\) ×10
0.3019 × 10 = 3.019 \(\rightarrow\) ×10
Overall scaling factor:
⇒ (÷100) × (×10) × (×10) = ÷100 × 100 = 1
Therefore, the product remains the same.
∴ The correct answer is option (3): 68.935 × 6033 × 3.019.
Last updated on Jul 17, 2025
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