 A person buys 4 houses; for the second, he gives half as much again as for the first; for the third, half as much again as for the second; and for the fourth, as much as for the first and third together: he pays $8000 for them all.  First Year Mathematics - Σελίδα 38των George William Evans, John A. Marsh - 1916 - 253 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Joseph Ray - 1852 - 408 σελίδες
...close of the second; when he finds that he has cleared $1000.50. Required his capital. Ann. $1380. 23. A is twice as old as B; 22 years ago, he was three times as old. What is A's age? Ans. 88 . 24. A person buys 4 houses; for the second, he gives half as much again... | |
 | Alfred Wrigley - 1852 - 344 σελίδες
...; A won .£5 and then 3 times A, s money was equal to 1 1 times BJs ; what had each at first ? 370. A is twice as old as B ; 22 years ago he was 3 times as old. What is A,s age ? 371. A messenger starts on an errand at the rate of 4 miles an hour;... | |
 | Alfred Wrigley - 1862 - 330 σελίδες
...sums ; A won £5 and then 3 times A's money was equal to 1 1 times B's ; what had each at first? 7. A is twice as old as B ; 22 years ago he was 3 times as old. What is A's age ? 8. A messenger starts on an errand at the rate of 4 miles an Ex.... | |
 | Joseph Ray - 1866 - 420 σελίδες
...close of the second ; when he finds that he has cleared $1000.50. Required his capital. Ans. $1380. 36. A is twice as old as B ; 22 years ago, he was three times as old. What is A's age? Ans. 88. 37. A person buys 4 houses ; for the second, he gives half as much again... | |
 | Joseph Ray - 1852 - 422 σελίδες
...close of the second; when he finds that he has cleared $1000.50. Required his capital. Ans. $1380. 23. A is twice as old as B; 22 years ago, he was three times as old. What is A's age) Ans. 88. A person buys 4 houses; for the second, he gives half ai much again as for... | |
 | James Hamblin Smith - 1870 - 452 σελίδες
...3^+15, or 2# = 10; .-. ff = 5. Hence A is 25 and 5 is 5 years old. 29. A is twice as old as B, and 22 years ago he was three times as old as B. What is A'a age ? 30. A father is 30 ; his son is 6 years old. In how many years will the age of the father... | |
 | St. Louis Mo, board of directors of the publ. sch - 1871 - 354 σελίδες
...1 / \ x \ 6. Divide x \ / 1 xv + r — . | by ( r~2 - r+ - J c- i bx da ex i . Solve, ^ — acbd " A is twice as old as B. 22 years ago he was three times as old. What is A's age ? 8. If 10 apples cost a cent, and 25 pears cost 2 cents, and you buy 100 apples and... | |
 | James Hamblin Smith - 1883 - 466 σελίδες
...Hence 5x + 5 = 3 (x + 5), or or Hence ^. is 25 and B is 5 years old. 29. A is twice as old as B, and 22 years ago he was three times as old as B. What is A'a age ? 30. A father is 30 ; his son is 6 years old. In how many years will the age of the father... | |
 | George Albert Wentworth - 1886 - 284 σελίδες
...years hence will be represented by x + 5 ; and B4s age by 2 ж + 5. 24. A is twice as old as B, and 22 years ago he was three times as old as B. What is A4s age ? 25. A father is 30 and his son 6 years old. In how many years will the father be just... | |
 | George Albert Wentworth - 1889 - 406 σελίδες
...W. 2. Simplify 2(ж-у)-2 3. Find the square root of 9 a4 - 12 a26 + 34 a2e3 - 20 ab3 + 25 ¿Л 4. A is twice as old as B ; 22 years ago he was four times as old ; what is A's age ? 5. Multiply з? + ^ - f by з? - ^p + y\ eai . 11 — ж 19 —... | |
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