Question

avarege of 5 constetitve numbers a,b,c is 105 what is the product of b,c

Answer 1

let the first number a be x

then the rest are b=x+1,c=x+2,d=x+3,e=x+4

average=x+x+1+x+2+x+3+x+4

105=5x+10

5x=105-10

5x=95

x=19

b value =x+1=20

c value x+2=21

bxc=20x21=420

so product of bc=420

hope it helps

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