a publishing house has 6 types of main magazine
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A publishing house has 6 types of main magazines. Health, Advertising, Crime PatrolMonthly news. Employmenhriews and Film news. It also has 5 subsidiaries- Spirituality.Religion, Preachings. Kids Today and B school review. The publishing house can combineany two magazines- 1 main and 1 subsidiary for subscription. How many suchcombinations can it create?30