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Phổ biến >

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

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

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.