 | Alfred Wrigley - 1852 - 344 σελίδες
...rectangular pile is 15 ; how many must there be in the other side that the pile may contain 4960 balls ? 770. The number of balls in a triangular pile is to the...base, as 6 to 1 1 ; required the number in each pile. 771. The number of balls in a complete rectangular pile is to the number in a complete square pile... | |
 | Joseph Ray - 1852 - 408 σελίδες
...a complete rectangular pile of 20 courses is 6440; how many balls are in its base 1 Ans. 740. ' 10. The number of balls in a triangular pile is to the...same number of balls in the side of the base, as 6 to 11; required the number in each pile. Ans. 816, and 1496. ! . / t *» *i < f 'v y> f.fit't/ INTERPOLATION... | |
 | Horatio Nelson Robinson - 1856 - 350 σελίδες
...12 layers, the upper layer has 8 shells on u side ; how many shells are in the pile ? Ans. 2330. G. The number of balls in a triangular pile is to the...number in a square pile (having the same number of layers) as 5 to 9 ; required the number in each pile. Ant. 455 and 819. Our object is now to express... | |
 | Alfred Wrigley - 1857 - 332 σελίδες
...of 15 courses, having 38 balls in a side of the base. Ex. 51, 52.] PERMUTATIONS AND COMBINATIONS. 57 Ex. 51. Find the number of balls in — 6. An incomplete...different things, taking r of them at a time, is n(n— 1)(n— 2) . . . (n— r+ 1). 2. The number of permutations of n things, when p of them are of one... | |
 | Joseph Ray - 1857 - 408 σελίδες
...in a complete rectangular pile of 20 courses is 6440; how many balls are in its base 1 Ans. 740. 10. The number of balls in a triangular pile is to the...same number of balls in the side of the base, as 6 to 11 ; required the number in each pile. Ans. 816, and 1496. 11. How many balls are in an incomplete... | |
 | Alfred Wrigley - 1859 - 328 σελίδες
...incomplete triangular pile, a side of the base course having 25 balls, and a side of the top 13. 5. An incomplete triangular pile of 15 courses, having...different things, taking r of them at a time, is n(n— 1)(n— 2) . . . (n— r+1). 2. The number of permutations of n things, when p of them are of one sort,... | |
 | Horatio Nelson Robinson - 1861 - 372 σελίδες
...layer bas 8 shells on a side ; how many shells are i0 the pile ? Ans. 23.iO. G. The number of bulls in a triangular pile is to the number in a square pile (having the same number of layers) as 5 to iJ ; required the mini be? in each pile. Ans. 455 and Bill. Our object is now to express... | |
 | Joseph Ray - 1852 - 422 σελίδες
...a complete rectangular pile of 20 courses is 6440; how many balls are. in its base ? Ans. 740. 10. The number of balls in a triangular pile is to the number in a square pile having the same nun '. _r of balls in the side of the base, as 6 to 11 ; required the number in each pile. Ans. SIG,... | |
 | James Robert Christie - 1866 - 428 σελίδες
...pile of the same number of courses; how many are there in that squsre pile? 572. The number of shot in a triangular pile is to the number in a square pile of the same number of courses, as 9 : 17 j find the number of shot in each pile. 573. Find the number... | |
 | Joseph Ray - 1866 - 420 σελίδες
...in a complete rectangular pile of 20 courses is 6440 ; how many balls are in its base? Ans. 740 10. The number of balls in a triangular pile is to the...same number of balls in the side of the base as 6 to 11 ; required the number in each pile. Ans. 816, and 1496. 11. How many balls are in an incomplete... | |
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The number of balls in a triangular pile is to the number in a square pile, having the same number of balls in the side of the base, as 6 to 1 1 ; required the number in each pile. 
