Question

Choose one number which is similar to the numbers in the given set:
$992,733,845,632$

• A. $114$
• B. $326$
• C. $425$
• D. $947$

Answer 1

The correct option is C $425$

Multiply the 1st and 3rd digits and then add the digits of the number obtained. It will give you the middle digit of the given number:
1) $9\times 2=18$
$1+8=9$ ( middle digit in $992$)
2) $7\times 3=21$
$2+1=3$ (middle digit in $733$)
3) $8\times 5=40$
$4+0=4$ (middle digit in $845$)
4) $6\times 2=12$
$1+2=3$ (middle digit in $632$)

Similarly in $425$
$4\times 5=20$
$0+2=2$(middle digit in $425$)
Hence, the similar number is $425$.