 | James Bates Thomson - Algebra - 1878 - 322 pages
...work alone in 36 days more. How long would it take each to do the work ? 109. If a certain number be divided by the product of its two digits, the quotient is 2\ ; and if 9 be added to the number, the digits will be inverted ; what is the number ? no. Find 4 geometrical... | |
 | Edward Olney - Algebra - 1878 - 516 pages
...and easy of solution. These devices are of special necessity in examples involving progressions. ] 1. What number is that which being divided by the product of its two digits.^the quotient is 2, and if 27 is added to it the digits are reversed ? 2. There are three numbers,... | |
 | C R. Lupton - 1879 - 194 pages
...280 = О or (ж + 35)(ж-8) = 0 /. ж = 8 or -35. /. A travelled 120 miles, and В 160 miles. (17) What number is that which being divided by the product of its two digits, the quotient is 6, and if !) be added to it, the digits will be inverted ? Let x and y represent the digits the number.... | |
 | Charles Davies - Algebra - 1879 - 288 pages
...50625 225 255 ж = ~32 ± Vie" 1024 ~ 88 Я ' using the positive value only, x •=. — - = 15. Ai 6. What number is that, which being divided by the product of its digits, the quotient will be 3 ; and if 18 be added to it, the order of its digits will be reversed... | |
 | 1885 - 286 pages
...Five cents per day is the interest on what sura at 7 per cent, per annum ? 9. If a certain number be divided by the product of its two digits, the quotient is 2% ; and if 9 be added to the number, the digits will be inverted : what is the number t 10. Two quantities are... | |
 | 1885 - 278 pages
...The sum of two numbers is 13, and the difference of their squares is 39. \\ hat are the numbers? 4. What number is that which, being divided by the product of its digits, is 3, and if 18 be added to it, the order of its digits will be reversed? 5. Find square root... | |
 | New Jersey. State Board of Education - Education - 1888 - 694 pages
...cents ; A. paid one cent more apiece than B.; how many lemons did each buy ? 8. If a certain number be divided by the product of its two digits, the quotient is 2 \ ; and if 9 be added to the number, the digits will be inverted ; what is the number ? 9. Extract the cube root... | |
 | Walter William Rouse Ball - Mathematics - 1890 - 512 pages
...are 5 and 29. Ex. 2. Find a number of two digits such that, if it be divided by the product of its digits the quotient is 2, and if 27 be added to the number the order of the digits is reversed. Let x be the tens' digit, and y be the units' digit, .'. the number... | |
 | Psychology - 1892 - 636 pages
...amazing power of conception and comprehension."2 The questions given him became continually harder. "What number is that which, being divided by the product of its digits, the quotient is 3 ; and if 18 be added the digits will be inverted? He flew out of his chair,... | |
 | Henry Sinclair Hall, Samuel Ratcliffe Knight - Algebra - 1895 - 212 pages
...reversed ; find the number. 16. A certain number oí two digits is four times the sum of the digits, and if 27 be added to the number the digits will be reversed ; find the number. 17. A certain number between 10 and 100 is six times the sum of the digits,... | |
| |
What number is that, which, being divided by the product of its digits, the quotient is 3 ; and if 18 be added to it, the digits will be inverted ? Ans. 
