Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number. 13 : 195 :: 7 : 63 :: 18 : ? |
360 330 378 342 |
360 |
Logic followed is : (1st number ) × (1st number + 2 ) = 2nd number 13 : 195 (13 ) × (13 + 2 ) = 13 ×15 = 195 7 : 63 (7 ) × (7 + 2 ) = 7 × 9 = 63 Similarly , 18 : ? (18) × (18 + 2 ) = 18 × 20 = 360 360 , is correct answer . |