Question

A number is multiplied by itself 3 times [to get the cube of the number). Then 61
is subtracted from the product obtained. If the final result is 9200, and the number
is 7k, then find k.​

Answer 1

Answer:

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Step-by-step explanation:

Let the number be x

A/q

x×(7x/3) -61 = 9200

⇒7x² - 183 = 27600

⇒7x² = 27600 +183 = 27783

⇒x² = 27783/7 = 3969

⇒x= √3969 = 63