Problems based on Numbers Test 2

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Question : 5 of 40

Marks: +1, -0

The sum of the squares of 2 numbers is 146 and the square root of one of them is

√ 5

. The cube of the other number is:

1111
1221
1331
1441

Solution:

One number

= (√5)^2= 5

Let other number be x; then

x^2 + 5^2 = 146

⇒ x^2 = 121

⇒ x = 11

Hence,

x^3 = (11)^3 = 1331

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