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شائع Word Problems >

A child is 12 years old, and his father is 32 years older. In how many years will the father be 3 times as old as the child?

الحلّ

A c hi l d i s 12 ye a rs o l d, an d hi s f a t h er i s 32 ye a rs o l d er . I n h o w man y ye a rs w i ll t h e f a t h er b e 3 t im es a s o l d a s t h e c hi l d ?

الحلّ

Number of years from now : 4

خطوات الحلّ

Translate the problem into an equation:

3 (12 + x) = 12 + 32 + x

3 (12 + x) = 12 + 32 + x, x

حلّ لـ:

x = 4

Number of years from now : 4

أمثلة شائعة

he product of 10 and six less than a number number set of (sqrt(4))/9 Roy and Vicky deposit 2,000.00 into a savings account which earns 1% interest compounded monthly. They want to use the money in the account to go on a trip in 2 years. How much will they be able to spend?Joe wants to buy a bond that will mature to 6000 in seven years. How much should he pay for the bond now if it earns interest at a rate of 2% per year, compounded continuously?the sum of a number and three less than the number is sixteen