Question : A sugar solution of 3 litres contains 60% sugar. One litre of water is added to this solution. Then the percentage of sugar in the new solution is:

Option 1: 30%

Option 2: 45%

Option 3: 50%

Option 4: 60%

Question : A class has five sections that have 25, 30, 40, 45, and 60 students, respectively. The pass percentages of these sections are 20%, 30%, 35%, 40%, and 100% respectively. The pass percentage of the entire class is:

Option 1: 87%

Option 2: 63%

Option 3: 53%

Option 4: 79%

Question : How much percentage should a racer increase speed to reduce the time by 20% to cover a fixed distance?

Option 1: 25%

Option 2: 30%

Option 3: 40%

Option 4: 35%

Question : A canister holds 36 litres of a mixture of milk and water in a ratio of 3 : 1. 15 litres of milk is added to the canister. The new ratio of the mixture is:

Option 1: 12 : 5

Option 2: 14 : 3

Option 3: 7 : 4

Option 4: 9 : 4

Question : The product of two numbers is 20000. If their LCM is 800, then what is their HCF?

Option 1: 25

Option 2: 30

Option 3: 35

Option 4: 20