Question 628079
given total no of students =74
a+b=74
given a is one fewer than twice the no of b
a= 2b-1
2b-1+b=74
3b-1=74
3b=74+1
3b=75
b=75/3
b=25
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a=2b-1
a=(2*25)-1
a=50-1
a=49
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