64. TROY WEIGHT. 18. 9.15 17. lb. oz. dut. gr. lb. 21 11 12 14 4 32 10 11 12 2 4 51 11 13 15 3 9 64 10 15 12 5 8 13 11 11 10 8 9 185 8 4 15 163 8 12 1 185 8 4 15 20 S 4 97 18 11 24 11 13 2 17 Explanation of Ex. 17. I first add up the grains, and find they amount to 63; this I divide by 24, which goes twice in it, and 15 over; I put down 15, and carry 2 to the dwts.; these added up amount to 64; this I divide by 20, exactly as was done in shillings, and find it goes 3 times, with 4 over; put down 4, and carry 3 to the ounces, which added up amount to 56; this is divided by 12, as was done in pence, and the quotient is 4, with 8 over; put down 8, and carry to the pounds, which are added and put down like simple addition. Thus the first line is found. In the second line, the grains amount to 49, which is twice 24, and 1 over; put down 1, and carry 2. The dwts. amount to 52, which is twice 20, and 12 over; put down 12, and carry 2. The ounces amount to 44, which is 3 times 12, and 8 over; put down 8, and carry 3 to the pounds, which are added by simple addition. The proof is done exactly as in Money, except that the numbers for which you carry differ. Explanation of Ex. 27. The drams added amount to 34, or 2 ounces, and 2 drams over; put down 2, and carry 2. The ounces likewise amount to 34, or 2lb. 2oz.; put down 2, and carry 2. The pounds amount to 33, or 1qr. 3lb.; put down 5, and carry 1. The quarters amount to 10, or 2cwt. 2qr.; put down 2, and carry 2. The cwts. amount to 35, or It. 15cwt.; put There will be no diffi down 15, and carry 1 to the tons, which amount to 27. culty in the second line and proof. |