If 20 -10 means- 200- 8 - 4 means 12- 6 - 2 means 4- then 100 - 10 - 1000 - 1000 - 10 -

The correct option is B 990As per the question #160;20 10=200, however 20x10=200 therefore, means x 8÷ 4=12, however 8+4=12, therefore, / means +6x 2= ...

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Standard XII

Mathematics

Manipulation of a linear equation

If 20 -10 mea...

Question

If 20 -10 means. 200, 8 $\div$ 4 means 12, 6 $\times$ 2 means 4, then 100 - 10 $\times$ 1000 + 1000 $\times$ 10 =?

990

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1090

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Solution

The correct option is B 990
As per the question
20-10=200, however 20x10=200 therefore, - means x
$8 \div 4 = 12,$ however 8+4=12, therefore, / means +
6x 2=4, however 6-2=4, therefore, x means -
Substituting in the equation given, equation becomes
$= 100 \times 10 - 1000 + 1000 - 10$
$= 1000 - 1000 + 1000 - 10$
$= 990$

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If 20 -10 means. 200, 8 ÷ 4 means 12, 6 × 2 means 4, then 100 - 10 × 1000 + 1000 × 10 =?

The correct option is B 990As per the question 20-10=200, however 20x10=200 therefore, - means x8÷4=12, however 8+4=12, therefore, / means +6x 2=4, however 6-2=4, therefore, x means - Substituting in the equation given, equation becomes=100×10−1000+1000−10=1000−1000+1000−10=990

If 20 -10 means. 200, 8 $\div$ 4 means 12, 6 $\times$ 2 means 4, then 100 - 10 $\times$ 1000 + 1000 $\times$ 10 =?