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פּוֹפּוּלָרִי Word Problems >

Whitney is 40 years old. Mary is 2 years older than Johnny and 3 years younger than Eva. Johnny is 27 years younger than Whitney. How old is Eva?

פתרון

Whi t n ey i s 40 ye a rs o l d . M a ry i s 2 ye a rs o l d er t han J o hnn y an d 3 ye a rs yo u n g er t han E v a . J o hnn y i s 27 ye a rs yo u n g er t han Whi t n ey . Ho w o l d i s E v a ?

פתרון

Eva^{'} s age is : 18

צעדי פתרון

Translate the problem into an equation:

x - 2 + 27 = 40

x - 2 + 27 = 40, x

פתור בשביל:

x = 15

Eva's age מצא את:

18

Eva^{'} s age is : 18

דוגמאות פופולריות

1/2 of my number is 22 The sum of 5 consecutive integers is 110 .What is the fourth number in this sequence?A department store puts dresses up for sale at 25% discount. If the discounted price of a dress is 42, what was the original price before the discount?12 more then 3 times a number if 1250 are deposited into an account with 6.5% interest rate, compounded monthly, what is the balance after 8 years