Question

In the following number one number is wrong find aut the wrong number 39,42,48,59,84,132

Answer 1

the number which is wrong is 59

Answer 2

Answer:

The wrong number is 59.

Step-by-step explanation:

Given series is 39,42,48,59,84,132

This is a problem of General inteligence part of Mathematics.

Here given series maintain a sequence.

$42 - 39 = 3 \\ 48 - 42 = 6 \\ 59 - 48 = 11 \\ 84 - 59 = 25 \\ 132 - 84 = 48$

It is clear that difference between each term is multiple of 3.

Differences are 3,6,9,12,24,48 respectively.

So,here 59 is wrong.

59 should be replace by 60.

This is a problem of Mathematics.

Some important Mathematics formulas.

(a + b)² = a² + 2ab + b²

(a − b)² = a² − 2ab − b²

(a + b)³ = a³ + 3a²b + 3ab² + b³

(a - b)³ = a³ - 3a²b + 3ab² - b³

a³ + b³ = (a + b)³ − 3ab(a + b)

a³ - b³ = (a -b)³ + 3ab(a - b)

a² − b² = (a + b)(a − b)

a² + b² = (a + b)² − 2ab

a² + b² = (a − b)² + 2ab

a³ − b³ = (a − b)(a² + ab + b²)

a³ + b³ = (a + b)(a² − ab + b²)

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