Not counting stereoisomers, the monochlorination of isobutan…

Not counting stereoisomers, the monochlorination of isobutane can yield [number] unique products. Assuming relative reactivities of 1:4:5 for primary, secondary and tertiary positions, the percentage of the major product will be [percentmajor] and the percentage of the minor product will be [percentminor] (Round the % to the nearest whole number). ENTER ALL ANSWERS AS A NUMERAL (ie. 7 not seven).