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Phổ biến Word Problems >

Fred is 4 years older than Barney. Five years ago the sum of their ages was 48. How old are they

Lời Giải

F re d i s 4 ye a rs o l d er t han B a r n ey . F i v e ye a rs a g o t h e s u m o f t h e i r a g es w a s 48. Ho w o l d a re t h ey

Lời Giải

Fred^{'} s age is : 31

Barney^{'} s age is : 27

Các bước giải pháp

Translate the problem into an equation:

x - 5 + x - 4 - 5 = 48

Giải

x, x - 5 + x - 4 - 5 = 48 : x = 31

Tìm age

Fred^{'} s age is : 31

Barney^{'} s age is : 27

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