 Of three numbers in geometrical progression, the sum of the first and second exceeds the third by 3, and the sum of the first and third exceeds the second by 21. What are the numbers ? 23.  New School Algebra - Page 332by George Albert Wentworth - 1898Full view - About this book
 | William Smyth - Algebra - 1855 - 370 pages
...in geometrical progression ; the first had £ 90 more than the last. How much had each? 5. There are three numbers in geometrical progression, the sum of the first and second of which is 9, and the sum of the first and third is 15. Eequired the numbers. 6. The sum of three... | |
 | George Farncomb Wright - 1857 - 98 pages
...first and second is to the sum of the second and third as 1 to 2. Required the numbers. 26. There are three numbers in geometrical progression ; the sum of the first and second is 6, and the sum of the first and third is 10. Find the numbers. HARMONICAL PROGRESSION. EXERCISE... | |
 | William Smyth - Algebra - 1858 - 344 pages
...in geometrical progression; the first had £90 more than the last. How much had each? 5. There are three numbers in geometrical progression, the sum of the first and second of which is 9, and the sum of the first and third is 15. Kequired the numbers. 6. The sum of three... | |
 | John Fair Stoddard, William Downs Henkle - Algebra - 1859 - 538 pages
...difference between the third and fourth is 4. What are the numbers ? An*. 54, 18, 6, and 2. 14. There are three numbers in geometrical progression, the sum of the first and second of which is 9, nnd the sum of the first and third is 15. What are the numbers? Ans. 3, 6, and 12. 15.... | |
 | James Wharton - 1860 - 176 pages
...number in the third ; and the whole number was 1938. How many were there in each flock ? (79.) There are three numbers in geometrical progression, the sum of the first and second of which is 9, and the earn of the first and third is 15. Required the numbers. (80.) There are four... | |
 | James Wharton - 1864 - 180 pages
...number in the third ; and the whole number was 1938. How many were there in each flock? (79.) There are three numbers in geometrical progression, the sum of the first and second of which is 9, and the sum of the first and third is 15. Required the numbers. (80.) There are four... | |
 | Horatio Nelson Robinson - Algebra - 1866 - 328 pages
...extremes being multiplied by the mean, the product is 30 ; what are the numbers ? Ans. l, 3, and 9. 10. Of three numbers in geometrical progression, the sum of the first and last is 52, and the square of the mean is 100 ; what are tbe numbers ? Ans. 2, 10, 50. 11. There are... | |
 | Benjamin Greenleaf - 1866 - 336 pages
...distant from it. Required the speed of each ? Ans. A's, 108 yards a minute ; B's, 162. 3Ï. There are three numbers in geometrical progression ; the sum of the first and second is 10, and the différence of the second and third is 24. What are the numbers ? Ans. 2, 8, and 32.... | |
 | Horatio Nelson Robinson - 1868 - 430 pages
...extremes is to the sum of the means as 7 to 3. What are the numbers? Ans. l, 3, 9, and 27. 9. There are three numbers in geometrical progression ; the sum of the first and second is 20, and the difference of the second and third is 30. What are the numbers ? Ans. 5, 15, 45. 10.... | |
 | Edward Olney - Algebra - 1873 - 354 pages
...can finish the job in 60 days. In how many days can each, separately, reap an acre ? 12. There are three numbers in geometrical progression, the sum of the first and second of which is 9, and the sum of the first and third is 15. Eequired the numbers. SUG'S. — In solving... | |
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