in a birthday party there are total 120 people present. among them some are boys and some are girls. all are dancing on the stage in a certain manner. if 1st boy is dancing with 7 girls, 2nd boy is dancing with 8 girls, 3rd boy is dancing with 9girls and so on. how many boys are present in the party

• if everyone is dancing in a pair then the no. of boys should be 60 [since there are 120 people present]
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