Question

Choose appropriate number for fourth place
13 : 91 :: 131 : ?

• A. 246
• B. 943
• C. 917
• D. 931

Answer 1

The correct option is C 917

The first number is multiplied by $7$ to get the second number

$13\times 7=91$
Similarly,
$131\times 7=917$

$\therefore$ $13:91::131:917$

$\therefore$ Correct answer is option $C$.