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The ratio of adults to children watching a school hockey game was4 : 1. When 5 more adults and 20 more children came in, the ratiochanged to 7 adults for every 2 children. How many children in totalcould there have been then?a) 180b) 170c) 160d) 150 |
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Answer» Answer: 150 CHILDREN Step-by-step EXPLANATION: Let the no. of ADULTS and children be 4x and 1x respectively. Then the ratios of adults to children watching game =4X: X ACCORDING to the question,when 5 more adults and 20 more children entered in the ratio, it was, 4X +5\ X+20=7/2 8X + 10= 7X + 140 X=130 Hence the total number of children could be 130+20=150 children |
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