3x2 ? 14x + 16=0
3x2 ?6x ? 8x + 16=0
3x (x-2) ? 8 (x-2)
(3x-8) (x-2)=0
x=8/3 or 2
5y2 ? 16y + 12=0
5y2 ? 10y ? 6y + 12=0
5y (y-2) ? 6 (y-2)=0
(5y-6) (y-2)=0
y=6/5 or 2
Can't be determined.
47/10000 = .0047
.02 =(2/100) x 100% =2%
Let N / 11 = 233
Then, N = 233 x 11 = 2563
? Missing digit is 5.
121012 = 12 x 10084 + 4
? remainder = 4
We have the important relation, More work, More time (days)
? A piece of work can be done in 6 days.
? Three times of work of same type can be done in 6 x 3
= 18 days
? = 750.0003 ÷ 19.999
? ? ? 750 ÷ 20
? ? ? 375 ? 38
Subtract 20, 25, 30, 35, 40, 45 from successive numbers. So 0 is wrong.
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