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人気のある Word Problems >

The sum of eric and ed's age is 74. three years ago, eric was thrice as old as ed. how old are eric and ed now?

解

T h e s u m o f er i c an d e d^{'} s a g e i s 74. t h ree ye a rs a g o, er i c w a s t h r i ce a s o l d a s e d . h o w o l d a re er i c an d e d n o w ?

解

Eric^{'} s age is : 54

Ed^{'} s age is : 20

解答ステップ

Translate the problem into an equation:

x - 3 = 3 (74 - x - 3)

x

を解く

x - 3 = 3 (74 - x - 3) : x = 54

発見する age

Eric^{'} s age is : 54

Ed^{'} s age is : 20

人気の例

Mark is three times as old as Heaven. Three years ago, Mark was four times as old as Heaven. What is the sum of their ages?Elsa is 9 years older than Anna. Five years ago, the sum of their age is 51. What is the present age of Anna?Jamie is 5 years older than Nicole. Two years ago, Jamie was twice as old as Nicole. How old are they now?Mario is twice as old as Peter. The sum of their ages 4 years ago was 37. Find how old they are now Lawrence is 9 years younger than Ariane. If the sum of their ages is 49, how old is Lawrence?