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Phổ biến Word Problems >

the product of two consecutive positive integers is 20. find the value of the greater integer.

Lời Giải

t h e p ro d u c t o f tw o co n sec u t i v e p os i t i v e in t e g ers i s 20. f in d t h e v a l u e o f t h e g re a t er in t e g er .

Lời Giải

The largest number : 5

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 20

Giải

x (x + 1) = 20 : x = 4, x = - 5

Select positive solutions:

4

x + 1 = 4 + 1 = 5

Select the largest solution:

5

The largest number : 5

Ví dụ phổ biến

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