Problems based on Numbers Test 7

Question : 10 of 18

Marks: +1, -0

(12)^3

is subtracted from the square of a number, the result so obtained is 976. What is the number?

Solution:

Let the number be x; then,

x^2 - 12^3 = 976

⇒ x^2 = 1728 + 976

∴ x = √2704 = 52

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