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شائع Word Problems >

Maryl is 5 years younger than Shaira. 4 years ago, the sum of their ages was 12.

الحلّ

M a ry l i s 5 ye a rs yo u n g er t han S hai r a . 4 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 12.

الحلّ

Maryl^{'} s age is : 7 \frac{1}{2}

Shaira^{'} s age is : 12 \frac{1}{2}

خطوات الحلّ

Translate the problem into an equation:

x - 4 + x + 5 - 4 = 12

x - 4 + x + 5 - 4 = 12, x

حلّ لـ:

x = \frac{15}{2}

age جد

Maryl^{'} s age is : 7 \frac{1}{2}

Shaira^{'} s age is : 12 \frac{1}{2}

أمثلة شائعة

There are two numbers whose sum is 53. Three times the smaller number is equal to 19 more than the larger number. What are the numbers?Find the future value and interest earned if 8704.56 is invested for 7 years at 5% compounded continuously The larger of two numbers is six less than twice the smaller number. If the sum of the numbers is 42 , find the numbers the larger of two numbers is one more than four times the smaller number. if the sum of the numbers is 106, find the numbers 2.8 added to twice a number is 22. Find the number.