ar

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

شائع Word Problems >

The product of two consecutive pages numbers is 420

الحلّ

T h e p ro d u c t o f tw o co n sec u t i v e p a g es n u mb ers i s 420

الحلّ

The numbers : 20, 21

خطوات الحلّ

Represent the numbers with

x

:

First number : x

Consecutive number : x + 1

A.T.Q.:

x (x + 1) = 420

x (x + 1) = 420

حلّ:

x = 20, x = - 21

Select positive solutions:

20

x + 1 = 20 + 1 = 21

The numbers : 20, 21

أمثلة شائعة

The product of a number and 5 is 60.At present, Therese is twice as old as Ralph. A year ago, the sum of their ages is 37. How old is Ralph now?The radius of a circle is 7 ft. Find its area in terms of pi How much should George deposit today in a savings account paying an annual interest rate of 2.9% in order to have 4150 in 7 years?Ten subtracted from the product of 9 and a number is at most-26.