Ring Cert
Math question paper this year in junior cert two? Please!?
A jeweler buys a rectangular block of gold, 4 cm long, 3cm wide and 2 inches high. 1cm3 of gold costs 400 euros. (1) Calculate the cost of the golden apple. 250mm3 needs of gold jewelry to a gold ring. (2) How many rings can be made from the block? Each ring is sold for 120 euros. (3) Calculate the amount of the profits of jewelry made in each ring.
V = 4 * 3 * 2 = 24 cm ^ 3 1) cost of the block = 24 * 400 = € 9,600 2) 10 mm = 1 cm V = 40 * 30 * 20 = 24,000 mm ^ 3 24.00 / 250 = 96 rings can be made 3) 1 cm ^ 3 = 1.000 mm ^ 2 1000 mm ^ 3 costs 400 euro 250 mm ^ 3 costs 400 / 4 = 100 costs 100 euros each ring to the jeweler who sells each ring of € 120 so its usefulness is the price – cost = profit 120 -100 = 20 euros a gold ring requires 250 mm ^ 3 of the golden apple for
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▓▓▌▓WELCOME EBAY BUYERS████ 41.50 CTS. NATURAL EMERALD GOLD DIAMOND RING█CERT█ $9,600.00 |
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