Question

वेगळे पद ओळखा 21
$\frac{21}{441} \frac{16}{256} \frac{24}{576} \frac{30}{600}$
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Answer 1

Question:

Find the different term from

21/441, 16/256, 24/576, 30/600

Solution:

• First number = 21/441

= 21/(21 * 21) = 21/21²

• Second number = 16/256

= 16/(16 * 16) = 16/16²

• Third number = 24/576

= 24/(24 * 24) = 24/24²

• Fourth number = 30/600

= 30/(30 * 20) ≠ 30/30²

We see that the first three numbers are expressible as the ratio of a number and its square but the last number can not be expressed in that form.

Thus 30/600 is the different number.