Question : There is a ratio of 5 : 4 between the two numbers. If 40 percent of the first number is 12, then 50% of the second number is:

Option 1: 12

Option 2: 24

Option 3: 18

Option 4: 20

Question : Directions: By Interchanging the given two numbers which of the following equations will be correct?
4 and 6

Option 1: 4 ÷ 2 + 3 – 6 × 5 = –14

Option 2: 9 ÷ 3 + 6 × 5 – 4 = 18

Option 3: 4 × 3 + 6 – 2 ÷ 1 = 21

Option 4: 4 – 6 ÷ 2 + 3 × 5 = 20

Question : Directions: Which two numbers and two signs should be interchanged in the following equation to make it correct?
18 – 6 + 11 × 5 + 18 = 113

Option 1: 6 and 5, + and ×

Option 2: 18 and 5, + and ×

Option 3: 6 and 5, – and ×

Option 4: 18 and 5, – and ×

Question : Three numbers are in the ratio 2 : 3 : 4. If the sum of their squares is 1856, the numbers are:

Option 1: 8, 12, and 16

Option 2: 16, 24, and 32

Option 3: 12, 18, and 24

Option 4: None of the above.

Question : Directions: Which two signs and two numbers should be interchanged in the following equation to make it correct?
189 ÷ 2 × 30 + 18 – 5 = 159

Option 1: 189, 30 and +, ÷

Option 2: 18, 30 and ÷, −

Option 3: 2, 30 and ÷, ×

Option 4: 30, 18 and –, ×