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Phổ biến Word Problems >

Edwin’s father is at present twice as old as Edwin. Five years ago, the sum of their ages was 59 years. Calculate Edwin’s present age.

Lời Giải

E d w in ’ s f a t h er i s a t p rese n t tw i ce a s o l d a s E d w in . 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 59 ye a rs . C a l c u l a t e E d w in ’ s p rese n t a g e .

Lời Giải

Edwin^{'} s age is : 23

Các bước giải pháp

Translate the problem into an equation:

x - 5 + 2 x - 5 = 59

Giải

x, x - 5 + 2 x - 5 = 59 : x = 23

Edwin^{'} s age is : 23

Ví dụ phổ biến

bob is 1/2 that of barry's. Five years ago, Bob was 3 times as old as Barry. Find the age of both If five is added to three or more than a certain number, the result is 19. What is the number?The sum of 2 numbers is 144 and their hiệu is 88 what is it The sum of a number and the square of that number is 12 . What is the number(s)?The product of a number and 4 is 24.