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What is the value of the expression $28 x 4 ÷ 56 x$ ?

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52 x 3

12 x 3

32 x 3

23 x 3

answer is B.

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Detailed Solution

The given expression is

28 x 4 ÷ 56 x

.
Writing the given expression in numerator and denominator form, we get,

28 x 4 ÷ 56 x = 28 x 4 56 x

Divide the monomial in the numerator by the monomial in the denominator using the formula

x m x n = x m − n,

28 x 4 56 x = 2856 × x 4 x = 12 x 3

Therefore, on solving

28 x 4 ÷ 56 x

, the result is

12 x 3

.
Hence, option 2 is correct.

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