a) 0.106
b) 0.160
c) 0.006
d) 0.016
correct answer is: d) 0.016
Explanation
First we rearrange the decimal numbers 0.4, 0.08 and 0.016.
0.4=0.400
0.08=0.080
0.016=0.016
Now, we find the HCF of 400,80 and 16.
HCF of 400,80,16 is 16
We can see there is a decimal point before three digits.
Putting the decimal point before three digits of the HCF (16) we get:
\rightarrow 16=0.016
Ans: HCF 0.016.