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Find the simple interest on Php.68,000 at 16 33/50% per annum for 9 * 1 point months. Php.7800 O Php.7680 O Php.8700 O Php.8496.6 A sum of Php.800 amounts to Php.920 in 8 years at simple interest. * 1 point Interest rate is increased by 8%, it would amount to how much? Php. 1020 Php.920 O Php.992 Php. 1089