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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1757 edition. Excerpt: ...A's debt to be ao1. then B's must be 27I. for 20 and 27 make 47; and C's debt must be 5i1-because 20 and 51 make 711. now B, and C's jdibti, viz. 27 and Si amount only to 78 1., which is less than 88 1 by 10 1. therefore error sirst is 10. Again, suppose A's deht to be241. with which proceed as with the sirst supposed number, and Tou'll find B, and C's debts together will be but 70L which wants 18 1. of 88 1. therefore error second is 18, anj jthe work will stand as followed): Jttp. er. 20 10 too little. 47 15 h 32 B's real debt. 1. c6 C's real debt. r5A's. 32 B's. 1. 103 total debt. One being aflced, what hour of the day it was? answered, The day at this time is 18 hours long; if therefore f of the hours past be added to i of the remaining hours to fun setting, the sum will be the hour desired, reckoning from fun rising; what o'clock was it? First, suppose it to be 10 hours from sun rising, then there will remain 8 hours to sun setting, now i 10 is 5, and of 8 is 2, but 2 and S make only 7 hours, which wants 3 hours of to, therefore the sirst error is 3. Again, suppose it to be 2 hours after sun rising, and you'll sind the result to be 5, which exceeds 2 by 3, therefore error second is 3 also, and the work will stand as followeth: sup. er. 10-.i,3 too little. . a-. i--3 too mucli. 3 ro 3 6 product. 30 product. 3 SO 6)36(6 hours from fun rising, answer. A person in the afternoon being asked what o'clock it was, answered, That-of the time frorri noon was equal to i of the time remaining to midnight; now the time from noon to midnight being 12 houis; what Was the present hour of the day. First, suppose it was 7 o'clock (or 420 minutes) afternoon, afternoon, then the time remaining to midnight was J hours or 300 minutes; now of...

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