17 In a certain computer company, 2/3 of the programmers know FORTRAN, 1/5 know COBOL, and 1/6 know both. What fraction know neither FORTRAN or COBOL? O 27/30 O 1/5 02/15 O 1/6 03/10 Clear 18 A company buys equal numbers of two different card forms. It utilizes 4/5 of one kind and 6/7 of the other. What fraction of the total number is unused? O 24/35 O 12/35 06/35 O 1/3 O 29/35 Clear 19 A fire engine starts pumping water at 10:30 am at the rate of 1000 gallons per minute. Another fire engine, pumping at the rate of 1200 gallons per minute, starts at 10:40 am. At what time will the two engines have pumped the same number of gallons? O 12:00 O 11:20 O 11:40 O 11:30 O 10:50 Clear 20 The dimensions of a certain IBM machine are 24" x 15" x 36". If the size of the machine is increased proportionately until the sum of its dimensions equals 160", what will be the increase in the shortest side? O 32" O 40.8" O 12.2" 2" 17" Clear Next Page Previous Page First Page Last Page 5 of 7 Go Finish