Dear Reader,
Below are four problems on ratio for your practice.

Question 1

Ratio of the score of two teams P and Q is 5:8. If the score of team P is increased by 60% and those of Q decrease by 35%, then the new ratio of their score becomes 9:8.Find the score of team P.

a)35 b)12 c)42 d)data inadequate

Answer : d) data inadequate

Dear Reader,
Below are three problems based on speed of boats and streams.

Question 1

A man can swim against the stream at 6 km/hr and along the stream at 12 km/hr. Then what will be the speed of man and stream?

a) 9km/hr & 3km/hr b)10km/hr & 12km/hr c) 12km/hr & 9km/hr d) 12km/hr & 6km/hr

Dear Reader,
Below are three problems based on Alligation or Mixture with ratio calculations.

Question 1

A milk bottle is filled with the mixture of water and milk in the ratio 3:5 respectively. How much of the mixture from the bottle must be drawn off and replaced with water so that the mixture has equal amount of water and milk?

Dear Reader,
Below are four problems on percentage calculations.

Question 1

If 96 is 80% of a number then 96% of that number will be:

a)115.2 b)125.5 c)112.5 d)112.2

Answer : a)115.2

Solution :

Dear Reader,
Below are three problems based on ages with logical thinking.

Question 1

The sum of the 1/2 of Sidharth's age two years from now and 1/3 of his age three years ago is twenty years, then how old is he now?

a)20years b)2years c)24years 4)4years

Answer : c)24years

Solution :

Dear Reader,
Below are four problems on Probability for your practice.

Question 1

If a number selected at random from a set which contains only 2 digit numbers, find the probability that the selected number will be a multiple of '8'.

a)1/10 b)4/45 c)1/15 d)none of these

Answer : b)4/45

Solution :

Dear Reader,
Below are three fractions based problems where you to simplify the given data to find the answers.

Question 1
Every day, a man spends 1/4 of his time to work, 3/8 of his time to sleep and the rest of the time in family. Then, during a week how many hours did he spend with his family?
a) 48 b) 54 c) 12 d) 63

Answer : d) 63

Dear Reader,
Below are three problems based on simplification with simple arithmetic calculations.

Question 1

From the total income, A man spent Rs.30,000 as his family's expenditure, half of the remaining as his office expenditure and had Rs.4000 left. What was his total income?
a)Rs.36,000 b)Rs.34,000 c)Rs.42,000 d)Rs.38 ,000

Dear Reader,
Below are three problems based on averages.

Question 1

The average of four numbers is 62.5. If none of them is less than 50 then the greatest possible value of summation of two of them is:
a)150 b)64 c)130 d)125

Answer : a)150

Dear Reader,
Below are three questions on calculations involving consecutive numbers.

Question 1

If the average of 4 consecutive odd numbers is 92, then the least number of those numbers is:
a) 89 b) 71 c) 81 d) 91

Answer : a) 89

Solution :

Let the four consecutive odd numbers be x, x+2, x+4 and x+6