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**A must be less than 3 since A is at 1000s place and 3*4 = 12**, which makes the given number a five digit number. Thus A can be 1 or 2. Since DCBA is a multiple of 4 it implies that A must be even and hence A is 2. A is 2 again implies D must be 8 or 9.

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## ABCD x 4 = DCBA. Can you find the values ?? Challenge for you !!

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## What is the value of D in ABCD 2 times 4?

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Now, abcd must be less than 2500, because 2500*4 = 10000; which is a 5-digit number. So, ‘a’ can be either 1 or 2. But a multiple of 4 has to be even, therefore ‘a’ = 2. Now, the value of ‘d’ has to be 8; because ‘a’ i.e. 2 times 4 is 8.

## How do you find DCBA when multipled by 4?

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Find the number ABCD such that when multipled by 4 gives DCBA. These problems can be tricky and/or tedious, but this one isn’t too bad. Method 1 ) Forming Equations and Solving them Then we have some equations: There are more inequalities: so 5 divides x. But x is small, from 0 to 3, so x = 0 is forced. Thus D = 8*w, and 4 <= D <= 9.

Why can’t I find C for D in DCBA?

This would violate your 4 digit product, DCBA. Hence you rule out 3 for D, and can equate D to 8 –> D = 8. You cannot find C just yet because there are two constraints on C: the remainder from D x 4, as well as the remainder from C x 4 affecting the number for B.

What is the value of a if ABCD x 4 = DCBA?

Abcd x 4= dcbA, it is a 4 digit no., when we multiply this no. by 4 we get its reversal, what is the no.? So A should be either 1 or 2. If I check right hand side by multiplication by four number generated should be even no. That produce A is 2. No think about d.

What is the largest possible value of ABCD?

By divisibility of 4, BA is a two-digit number divisible by 4. Now, the largest possible value of ABCD is 2499, because anything more will result in a five digit number when multiplied by 4. Out of the two possibilites 1 and 2 for A, [3] follows that A is even, so 2.

What is the rule for divisibility by 4?

The basic rule for divisibility by 4 is that if the number formed by the last two digits in a number is divisible by 4, the original number is divisible by 4 4 | d c b a ⟹ 4 | b a.

## Why can’t I find C for D in DCBA?

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This would violate your 4 digit product, DCBA. Hence you rule out 3 for D, and can equate D to 8 –> D = 8. You cannot find C just yet because there are two constraints on C: the remainder from D x 4, as well as the remainder from C x 4 affecting the number for B.

## How do you find 3 ABCD in standard form?

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Combine ABCD imes 4 and -DCBA to get 3ABCD. The equation is in standard form. The equation is in standard form. Divide 0 by 3BCD.

How do you find a number in standard form?

Find standard form of a positive or negative number with the standard form calculator. Convert from number format to standard form as a decimal multiplied by a power of 10. Standard form is a way of writing a number so it is easier to read. It is often used for very large or very small numbers.

What is standard form in math?

Standard form is a way of writing a number so it is easier to read. It is often used for very large or very small numbers. Standard form is like scientific notation and is typically used in science and engineering.

What is the standard form format for multiplication?

Standard form format is: b is an integer and is the power of 10 required so that the product of the multiplication in standard form equals the original number Standard form of a number is a x 10 b where a is a number, 1 ≤ | a | < 10. b is the power of 10 required so that the standard form is mathematically equivalent to the original number.

How do you find a quadratic equation in standard form?

Once the quadratic is in standard form, the values of a a, b b, and c c can be found. ax2 + bx+c a x 2 + b x + c Use the standard form of the equation to find a a, b b, and c c for this quadratic. a = 1 a = 1, b = −5 b = – 5, c = −15 c = – 15

References:

Solve ABCD*4=DCBA | Microsoft Math Solver

Solve 4*ABCD = DCBA in python – Stack Overflow

Find the number ABCD such that when multipled by 4 …

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Questions just answered:

Why can’t I find C for D in DCBA?

What is the value of a if ABCD x 4 = DCBA?

What is the largest possible value of ABCD?

What is the rule for divisibility by 4?

How do you find DCBA when multipled by 4?

Why can’t I find C for D in DCBA?

What is the value of D in ABCD 2 times 4?

How do you find a number in standard form?

What is standard form in math?

What is the standard form format for multiplication?

How do you find a quadratic equation in standard form?

How do you find 3 ABCD in standard form?

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