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" B's, and B's is triple of C's, and the sum of all their ages is 140. What is the age of each ? Ans. A's =84, B's =42, and C's =14. "
Mathematics: Compiled from the Best Authors and Intended to be the Text-book ... - Side 350
1801 - 426 sider
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An Introduction to Algebra: With Notes and Observations: Designed for the ...

John Bonnycastle - 1782 - 226 sider
...it at firft? Anf. 120 guineas. n. A's age is double of B's, and B's is. triple pf C's, and the fum of all their ages is 140 ; what is the age of each ? Anf. A's— 84, B's— 42, anJC's=. 14. 12. Two perfons, A and B, lay out equal fums of money in...
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An Introduction to Algebra: With Notes and Observations; Designed for the ...

John Bonnycastle - 1806 - 234 sider
...it at firft ? Ans. 1 20 guineas. 11. A'S age is double of u's, and u's is triple of c's, and the fum of all their ages is 140 ; what is the age of each ? Ans. AJs=84, B's=42,sW €'5 = 14. 12. Two perfons, A and B, lay out equal fums of money in trade, A gains...
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An Introduction to Algebra: With Notes and Observations: Designed for the ...

John Bonnycastle - 1811 - 230 sider
...; what was in it at first ? Ans. 120 guineas. 11. As age is double of Bs, and Bs is triple of C's, and the sum of all their ages is 140; what is the age of each? Ans. A-«=84, B-»=42, and Cj=14. 12. Two persons, A and B, lay out equal sums of money in trade; A gains...
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The Columbian Arithmetician: Or New System of Theoretical and Practical ...

1811 - 230 sider
...the number required. EXAMPLES. « A's age is double that of B, and B's triple that of C, and the fum of all their ages is 140 ; what is the age of each ?" fuppofe A's age - - - 48 then B's will be (|=) - - 2* and C's - - (i=) - - 8 80 refult. A. proof...
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A System of Arithmetic: Reprinted from the Mathematical Text-book

Samuel Webber - 1812 - 260 sider
...any other number. , . • EXAMPLES. • •' ' • ' ' 1. A's age is double that of B, and B's isr triple that of C, and the sum of all their ages is 14O: what is .each per• son's agev? . • - , . Suppose As age to .be 60 •. Then will B's = *,»...
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A Treatise on Algebra, in Practice and Theory: With Notes and ..., Volum 1

John Bonnycastle - 1813 - 456 sider
...Ans. 7°8 for one, and £88 for the other ItX, A's age is double of B'S, and B'S is triple of c's, and the sum of all their ages is 140; what is the age of each? Ans. A'S 84, в'» 42, and c's 14 11. A person has 6 sons, each of whom is 4 years older than his next younger brother,...
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An Introduction to Algebra: With Notes and Observations : Designed for the ...

John Bonnycastle - 1818 - 284 sider
...each ? Ans. 708 for one, and 588 for the other 10. A's age is double of B'S, and B'S is triple of c's, and the sum of all their ages is 140 ; what is the age of each ? Ans. A'S 84, B'S 42, and c's 14 1 1 . Two persons, A and B, lay out equal sums of money in trade ; A gains 1262. and B loses 872.,...
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An Introduction to Algebra: With Notes and Observations : Designed for the ...

John Bonnycastle - 1818 - 326 sider
...708 for one, and 588 for the other 10. A's age is double of B'S, and B'S is triple of c'a, and (he sum of all their ages is 140 ; what is the age of «ach ? Ans. A'S 84, B'S 42, and c'a 14 11. Two persons, A and B, lay out equal sums of money in trade...
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A Popular Course of Pure and Mixed Mathematics ...: With Tables of ...

Peter Nicholson - 1825 - 1046 sider
...Ans. 233 for one, and 142 for the other. 19. A.'s age is double of B.'s, and B.'s is triple of C.'s, and the sum of all their ages is 140 ; what is the age of each ? Ans. A.'s=84, B.'s=42, and C.'s=14. 20. What number is that from which, if 5 be subtracted, twothirds of...
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An Introduction to Algebra: With Notes and Observations, Designed for the ...

John Bonnycastle - 1825 - 336 sider
...for one, and 588 for the other. 10. A's age is double of B'S, and B'S is triple of c's, and the SUEI of all their ages is 140; what is the age of each? Ans. A'S 84, B'S 42,and c's 14. 11. Two persons A and B, lay out equal sums of mcney in trade ; A gains 126Z. and B...
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