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Phổ biến Word Problems >

The sum of the reciprocals of 2 consecutive even integers is 11/60 . Find the numbers.

Lời Giải

T h e s u m o f t h e rec i p roc a l s o f 2 co n sec u t i v e e v e n in t e g ers i s \frac{11}{60} . F in d t h e n u mb ers .

Lời Giải

The numbers : 10, 12

Các bước giải pháp

Represent the numbers with

x

:

First number : x

Consecutive number : x + 2

A.T.Q.:

\frac{1}{x} + \frac{1}{x + 2} = \frac{11}{60}

Giải

\frac{1}{x} + \frac{1}{x + 2} = \frac{11}{60} : x = 10, x = - \frac{12}{11}

Thay

x = 10 : 12

Thay

x = - \frac{12}{11} :

Không hợp lệ

The numbers : 10, 12

Ví dụ phổ biến

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