 | University of Oxford - Education, Higher - 1863 - 316 pages
...gallons was water : how many gallons were there of each ? 11. A certain number consisting of two digits, is equal to four times the sum of those digits ; and if 1 8 be added to the number itself, the digits will be inverted. 12. A general in forming his men into... | |
 | Edward Olney - Algebra - 1873 - 354 pages
...becomes f ; but the denominator being doubled, and the numerator increased by 2, the value becomes | ? 6. There is a number consisting of two digits, which...equal to four times the sum of those digits; and if 18 be added to it, the digits will be inverted. What is the number? 7. A work is to be printed, so... | |
 | Edward Olney - 1878 - 360 pages
...becomes f ; but the denominator being doubled, and the numerator increased by 2, the value becomes \ ? 6. There is a number consisting of two digits, which...equal to four times the sum of those digits ; and if 18 be added to it, the digits will be inverted. What is the number? 7. A work is to be printed, so... | |
 | Edward Olney - Algebra - 1880 - 354 pages
...becomes f ; but the denominator being doubled, and the numerator increased by 2, the value becomes | ? 6. There is a number consisting of two digits, which...equal to four times the sum of those digits; and if 18 be added to it, the digits will be inverted. What is the number? 7. A work is to be printed, so... | |
 | Edward Olney - Algebra - 1882 - 358 pages
...becomes f ; but the denominator being doubled, and the numerator increased by 2, the value becomes | ? 6. There is a number consisting of two digits, which...equal to four times the sum of those digits ; and if 18 be added to it, the digits will be inverted. What is the number? 7. A work is to be printed, so... | |
 | Education - 1882 - 676 pages
...Office,' Deptford, London. 2. KA MACLEAN. — Published by Chapman & Hall. 3. JWS, Manchester. — There is a number consisting of two digits, which is equal to 12 times the difference of its digits ; and if 36 be added to it, the digits will be inverted. Required... | |
 | Edward Brooks - Algebra - 1888 - 344 pages
...number which equals 5 times the sum of its two digits ; and if three times the sum of the digits, plus 9, be subtracted from twice the number, the digits will be inverted ; required the number. Ann, 45. CASE ГУ. 1. The amount of a certain principal at simple interest,... | |
 | Edward Brooks - Algebra - 1888 - 190 pages
...number which equals 5 times the sum of its two digits ; and if three times the sum of the digits, plus 9, be subtracted from twice the number, the digits will be inverted ; required the number. Ans. 45. CASE IV. 1. The amount of a certain principal at simple interest, for... | |
 | Education - 1893 - 786 pages
...by 2, they will be in geometrical progression. Find the numbers. 9. Divide 81 * — 16 by $x*+2. 10. There is a number consisting of two digits, which is equal to four times the sum of the digits. If 18 be added to the number the digits will be reversed. GEOMETRY. — i. If one of the... | |
 | International Correspondence Schools - Electrical engineering - 1897 - 672 pages
...the denominator being doubled, and the numerator increased by 2, the value becomes f . Ans. $. (250) There is a number consisting of two digits, which...equal to four times the sum of those digits; and if 18 be added to the number, the digits will be inverted. What is the number? NOTE.— Remember that... | |
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There is a number consisting of two digits, which is equal to four times the sum of those digits; and if 18 be added to it, the digits will be inverted. What is the number? 
