Common Information
There are $N$ numbers of gold biscuits in the house, in which four people are lived. If the first men woke up and divided the biscuits into 5 equal piles and found one extra biscuit. He took one of those piles along with the extra biscuit and hid them. He then gathered the 4 remaining piles into a big pile, woke up the second person and went to sleep. Each of the other 3 persons did the same one by one i.e. divided the big pile into 5 equal piles and found one extra biscuit. Each hid one of the piles along with the extra biscuit and gathered the remaining 4 piles into a big pile.
Q2. 
Common Information Question: 1/3 If $N > 1000$, what could be the least value of $N$? 
A.  1249 

B.  1023 

C.  1202 

D.  1246 
Q5. 
Two alloys $A$ and $B$ are composed of two basic elements. The ratios of the compositions of the two basic elements in the two alloys are $5:3$ and $1:2$, respectively. A new alloy $X$ is formed by mixing the two alloys $A$ and $B$ in the ratio $4:3$. What is the ratio of the composition of the two basic elements in alloy $X$? 
A.  $1:1$ 

B.  $2:3$ 

C.  $5:2$ 

D.  $4:3$ 