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Phổ biến Word Problems >

15 years from now Steven will be twice as old as Maria. The current sum of the ages of Steven and Maria is 33. How old is Maria right now?

Lời Giải

15 ye a rs f ro m n o w St e v e n w i ll b e tw i ce a s o l d a s M a r ia . T h e c u rre n t s u m o f t h e a g es o f St e v e n an d M a r ia i s 33. Ho w o l d i s M a r ia r i g h t n o w ?

Lời Giải

Maria^{'} s age is : 6

Các bước giải pháp

Translate the problem into an equation:

x + 15 = 2 (33 - x + 15)

Giải

x, x + 15 = 2 (33 - x + 15) : x = 27

Tìm Maria's age

: 6

Maria^{'} s age is : 6

Ví dụ phổ biến

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