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인기 있는 Word Problems >

The sum of two numbers is 50 . The second number is five times the first. Find the numbers. Two numbers are in the ratio 1:11 and their sum is 15 . Find the numbers.

해법

T h e s u m o f tw o n u mb ers i s 50 . T h e seco n d n u mb er i s f i v e t im es t h e f i rs t . F in d t h e n u mb ers . Tw o n u mb ers a re in t h e r a t i o 1 : 11 an d t h e i r s u m i s 15 . F in d t h e n u mb ers .

해법

The numbers : 1 \frac{1}{4}, 13 \frac{3}{4}

솔루션 단계

Represent the numbers in ratio 1:11 with

x

x

11 x

A.T.Q.:

x + 11 x = 15

x

해결 대상

, x + 11 x = 15 : x = \frac{5}{4}

x = \frac{5}{4}

11 x = 11 \cdot \frac{5}{4} = \frac{55}{4}

부적절한 분수를 혼합 숫자로 변환:

\frac{5}{4} = 1 \frac{1}{4}

부적절한 분수를 혼합 숫자로 변환:

\frac{55}{4} = 13 \frac{3}{4}

The numbers : 1 \frac{1}{4}, 13 \frac{3}{4}

인기 있는 예

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