Aptitude Test: Ratio and Proportion
No. of Questions: 10
Time Duration: 10 min
1.
A virus doubles its spread every 4 hours. If it fully infects a computer in 48 hours, when was it 50% infected?
2.
The value of 1 Euro is twice that of 1 Yen, and 1 Dollar is 4 times the value of 1 Yen. What fraction of a Dollar is a Euro?
3.
A paint mixture is 3 parts red to 5 parts white. If 32 liters of the mixture were made, how many liters of red paint were used?
4.
Simplify the ratio: 36 : 48
5.
A beam's resistance is proportional to the square of its height and inversely proportional to the width. Beam A is twice the height and the same width as Beam B. What's the ratio of their resistances?
6.
A club has fewer than 200 members, and the ratio of adults to children is 5:3. Which of the following total member counts is possible?
7.
A teacher wants to split students into groups of 4, 6, and 10 for different activities without any leftover students. What is the minimum number of students she must have?
8.
If $x can buy y pens, how many pens can $m buy?
9.
Sarah jogged for 5 hours a week last year and burned 15,600 calories total. Approximately how many calories did she burn per minute?
10.
The ratio of rent, utilities, and groceries in a monthly budget is 7:3:2. If the total budget is $2,400, how much is allocated to utilities?
