Question 1 :
Each floor of a high rise building is fitted with $20$ doors. There are $12$ floors in each building. There are $25$ such buildings in a complex. Calculate the total number of doors fitted in the complex.

Question 2 :
A bookshelf holds both paperback and hardcover books. The ratio of paper back books to hardcover books is $22$ to $3$. How many paperback books are on the shelf ?If $18$ paperback books were removed from the shelf and replaced with $18$ hardcover books, the resulting ratio of paperback books to hardcover books on the shelf would be $4$ to $1$

Question 3 :
If $3$ pieces of table cloth cost $Rs.\,112.50$, then the number of pieces of table cloth available for $Rs.\,487.50$ is

Question 4 :
If $70$ men dig $15,000$ sq.m of a field in $5$ days, how many men will dig $22,500$ sq.m field in $25$ days?

Question 5 :
If $45$ students can consume a stock of food in $2$ months, then for how many days the same stock of food will last for $27$ students?

Question 6 :
If $25$ horses consume $18$ quintal in $36$ days, how long will $28$ quintal last for $30$ horses ?

Question 7 :
If $x : y = 5 : 2$ and $y : z = 3 : 2$, what is the ratio of $x : z$?

Question 8 :
The population of a bacteria culture doubles in number every 12 minutes. the ratio of the number of bacteria at the end of 1 hour to the number of bacteria at the beginning of that hour is

Question 9 :
If three numbers in the ratio $3:2:5$ be such that the sum of their squares is $1862$, the middle number will be

Question 10 :
One year payment of the servant is  one shirt and $Rs.200$ . The servant leaves after $9$ months and receives $Rs.120$ and a shirt. What is the price of the shirt?

Question 11 :
Cost of pure milk is Rs. $16$ per liter. On adding water, the mixture is sold at Rs. $15$ per liter. In this way, the milkman earns $25\ %$ profit. What is the ratio of milk and water in the mixture?

Question 12 :
If the weight of $5$ bags of rice is $272\ kg$, then the weight of $1$ bag of rice is

Question 13 :
Nate walks $25$meters in $13.7$ seconds. If he walks at this same rate, which of the following is closest to the distance he will walk in $4$ minutes?