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Phổ biến Word Problems >

Ann is 4 years older than Julie. 4 years ago Ann was twice as old as Julie. Find their present ages.

Lời Giải

A nn i s 4 ye a rs o l d er t han J u l i e . 4 ye a rs a g o A nn w a s tw i ce a s o l d a s J u l i e . F in d t h e i r p rese n t a g es .

Lời Giải

Ann^{'} s age is : 12

Julie^{'} s age is : 8

Các bước giải pháp

Translate the problem into an equation:

x - 4 = 2 (x - 4 - 4)

Giải

x, x - 4 = 2 (x - 4 - 4) : x = 12

Tìm age

Ann^{'} s age is : 12

Julie^{'} s age is : 8

Ví dụ phổ biến

84 is 12% of what number?Two-thirds of a number, reduced by eleven is equal to four more than the number. What is the number?Eight less than the product of 9 and a number is 4 The hiệu of three times a number and three is twenty-one. Find the number.Seven more than the quotient of a number and 3 is 10. What is the number?