3i Infotech Papers: Sample Questions 40  43 of 1245
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Question number: 40
» Aptitude
Write in Short
A student is ranked 13^{th} from right and 8^{th} from left. How many students are there in total?
Explanation
A student is ranked 13^{th} from right and 8^{th} from left.
We are asked to find the total number of students in the class.
As student is counted for twice, total number of students will be
Question number: 41
» Aptitude
Write in Short
If it takes five minutes to boil one egg, how long will it take to boil four eggs?
Explanation
One egg is taking five minutes to get boiled.
We are asked to find the time taken by four eggs to get boiled.
If we will put all the eggs together on gas, then they will get boiled in the same time.
So, in five minutes only, all four eggs will get boiled.
Question number: 42
» Aptitude
Question
x % of y is y % of?
Choices
Choice (4)  Response  

a.  x 

b.  2y 

c.  x/y 

d.  Can’t be determined 

Answer
a.Explanation
x % of y, i. e.
We are asked to find the equivalence of this with y % of z.
We need to find this z.
So, we can say that x % of y is equal to y % of x.
Question number: 43
» Aptitude
Question
A car travels 15 kms on a liter of petrol. When it is driven at 60 kms per hour it only goes 80 % as far. How many liters of petrol will it take to travel 120 kms driving at 60 kms per hour?
Choices
Choice (4)  Response  

a.  9.6 

b.  8 

c.  2 

d.  6.4 

Answer
a.Explanation
A car travels 15 kms on a liter of petrol.
When it is driven 60kms per hour it only goes 80 % as far.
We are asked to find how many liters of petrol will be required to travel 120 km distance.
So, 80 % of 120 km
Yet car has to travel 24 km distance.
Car needs 1 liter of petrol for 15 km distance
Then, for 24 km distance, car will need = 1.6 liter petrol
So, car will need total liter of petrol to cover distance of 120 km.