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Populaire >

The product of two consecutive pages numbers is 420

Solution

The product of two consecutive pages numbers is 420

Solution

The numbers : 20, 21

étapes des solutions

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 420

Résoudre

x (x + 1) = 420 : x = 20, x = - 21

Select positive solutions:

20

x + 1 = 20 + 1 = 21

The numbers : 20, 21

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