Problems based on Numbers Test 6

Question : 6 of 40

Marks: +1, -0

(26)^2

is subtracted from square of a number, the result so obtained is 549. What is the number?

Solution:

Let the number be x; then

x^2 - (26)^2 = 549

⇒ x^2 = 549 + 676

∴ x = √1225 = 35

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