How many 4 digit numbers can you write using only the digits 2 and 5? With each digit having only 2 possibilities, the answer is 2 to the 4th power, which is 16. The 4 is because there are 4 digits. Think about the binary numbers 0000 to 1111, t â¦ here are 2 possibilities for each digit.
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Nevertheless, as shown in Table 4, CER of the MOH cataract surgery programme is RM4249 (US$1118) for ECCE and RM4561 (US$1200) for phacoemulsification. As compared to a cost-effectiveness study of public-funded cataract surgery in India 10, the CER for Medical College hospitals was US$176 for ECCE.uccessful surgery was defined as BCVA of better than 6/12 at 3 months post-operatively. Costs The cost categories identified and measured were: 1. Capital costs which included building and capital equipment. All capital costs were annualised to year 2000. Building cost was amortised over 30 years at 3% discount rates.