Question Bank  Arithmetic  Hemant Malhotra

15/7 ????
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@hemant_malhotra 40 seconds

@hemant_malhotra question 47 :
8x+10y=90
which gives us possible values of X & Y as (5,5) & (10,1) respectively
Hence total red marbles = 40 or 80
total Black marbles = 50 or 10

@hemant_malhotra 416/400 = 1+r/100
r=4%x/416 =1 +4/100
x =432.64