Chemical Engineering
GATE CH Quantitative Aptitude PYQs
Build your understanding with focused practice from past exam papers.
Questions 21–30 of 38. Imported answers require independent review unless marked reviewed.
Question 7
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Details of prices of two items P and Q are presented in the above table. The ratio of cost of item P to cost of item Q is 3:4. Discount is calculated as the difference between the marked price and the selling price. The profit percentage is calculated as the ratio of the difference between selling price and cost, to the cost
The discount on item Q, as a percentage of its marked price, is ______.Items | Cost (₹) | Profit % | Marked Price (₹) |
|---|---|---|---|
P | 5,400 | --- | 5,860 |
Q | --- | 25 | 10,000 |
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The difference between the sum of the first
natural numbers and the sum of the first
odd natural numbers is ____.Your answerChoose one option.
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The distance between Delhi and Agra is 233 km. A car P started traveling from Delhi to Agra and another car Q started from Agra to Delhi along the same road 1 hour after the car P started. The two cars crossed each other 75 minutes after the car Q started. Both cars were traveling at constant speed. The speed of car P was 10 km/hr more than the speed of car Q. How many kilometers car Q had traveled when the cars crossed each other?
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The profit shares of two companies P and Q are shown in the figure. If the two companies have invested a fixed and equal amount every year, then the ratio of the total revenue of company P to the total revenue of company Q, during 2013 - 2018 is______.
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Two cars start at the same time from the same location and go in the same direction. The speed of the first car is 50 km/h and the speed of the second car is 60 km/h. The number of hours it takes for the distance between the two cars to be 20 km is ____.
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Ten friends planned to share equally the cost of buying a gift for their teacher. When two of them decided not to contribute, each of the other friends had to pay Rs 150 more. The cost of the gift was Rs. ____.
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In the given diagram, teachers are represented in the triangle, researchers in the circle and administrators in the rectangle. Out of the total number of the people, the percentage of administrators shall be in the range of .
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In a college, there are three student clubs. Six students are only in the Drama club, 80 students are only in the Dance club, 30 students are only in the Maths club, 10 students are in both Drama and Dance clubs, 12 students are in both Dance and Maths clubs, 7 students are in both Drama and Maths clubs, and 2 students are in all the clubs. If 75% of the students in the college are not in any of these clubs, then the total number of students in the college is _____.
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The area of an equilateral triangle is
. What is the perimeter of the triangle?Your answerChoose one option.
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Arrange the following three-dimensional objects in the descending order of their volumes:
(i) A cuboid with dimensions 10 cm, 8 cm and 6 cm
(ii) A cube of side 8 cm
(iii) A cylinder with base radius 7 cm and height 7 cm
(iv) A sphere of radius 7 cm
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