Question : Three numbers are in the ratio 5 : 7 : 12. If the sum of the first and the third numbers is greater than the second number by 50. The sum of the three numbers is:

Option 1: 125

Option 2: 120

Option 3: 95

Option 4: 85

Question : Among three numbers, the second is twice the first and also thrice the third. If the average of the three numbers is 33, then the largest number is:

Option 1: 36

Option 2: 54

Option 3: 62

Option 4: 72

Question : The sum of the three numbers is 280. If the ratio between the first and second numbers is 2 : 3 and the ratio between the second and third numbers is 4 : 5, then find the second number.

Option 1: 80

Option 2: 90

Option 3: 86

Option 4: 96

Question : The sum of three numbers is 252. If the first number is thrice the second and third number is $\frac{2}{3}$rd of the first, then the second number is:

Option 1: 41

Option 2: 21

Option 3: 42

Option 4: 84

Question : The average of the first three numbers is double the fourth number. If the average of all the four numbers is 12. Find the 4th number.

Option 1: $16$

Option 2: $\frac{48}{7}$

Option 3: $20$

Option 4: $\frac{18}{7}$