Question : The lengths of the three sides of a triangle are in the ratio of 2 : 2 : 3. If the perimeter of the triangle is 42 cm, then what is the length of the largest side?

Option 1: 12 cm

Option 2: 18 cm

Option 3: 20 cm

Option 4: 15 cm

Question : A circle is inscribed in an equilateral triangle and a square is inscribed in that circle. The ratio of the areas of the triangle and the square are:

Option 1: $\sqrt3:4$

Option 2: $\sqrt3:8$

Option 3: $3\sqrt3:2$

Option 4: $3\sqrt3:1$

Question : In a bucket, there are 40 red balls and 120 blue balls. The ratio of red to blue is:

Option 1: 1 : 3

Option 2: 3 : 4

Option 3: 1 : 4

Option 4: 2 : 3

Question : Directions: In the following question, select the missing number of the given series.
0, 20, 40, 60, 80, ?

Option 1: 110

Option 2: 100

Option 3: 120

Option 4: 90

Question : If 80% of A is 13 more than 90% of B, and the ratio of 40% of A to 60% of B is 10 : 9, then what is the value of A – B?

Option 1: 50

Option 2: 80

Option 3: 20

Option 4: 60