CAT 2017 Question Paper | Quants Slot 1

CAT Previous Year Paper | CAT Geometry Questions | Question 16

The best questions to practice for CAT Exam are the actual CAT Question Papers. 2IIM offers you exactly that, in a student friendly format to take value from this. If you would like to take the same inside a testing engine (for Free) head out here: CAT Official Question Mocks. In CAT 2017 we saw some beautiful questions that laid emphasis on Learning ideas from basics and being able to comprehend more than remembering gazillion formulae and shortcuts. Original CAT Question paper is the best place to start off your CAT prep practice. This page provides exactly that. To check out about 1000 CAT Level questions with detailed video solutions for free, go here: CAT Question Bank

Question 16 : From a triangle ABC with sides of lengths 40 ft, 25 ft and 35 ft, a triangular portion GBC is cut off where G is the centroid of ABC. The area, in sq ft, of the remaining portion of triangle ABC is :

1. 225√3
2. $$frac{500}{√3}$ 3. $\frac{275}{√3}$ 4. $\frac{250}{√3}$ 2IIM : Best Online CAT Coaching Signup and sample 9 full classes for free The Best Online CAT Coaching Courses Video Explanation Best CAT Coaching in Chennai CAT Coaching in Chennai - CAT 2020Starts Sun, Feb 23rd, 2020 Explanatory Answer Method of solving this CAT Question from Geometry Given that from a triangle ABC with sides of lengths 40 ft, 25 ft and 35 ft, a triangular portion GBC is cut off where G is the centroid of ABC. Here GBC is the one third of the area of the triangle. We can join AG and GD which is the median. Each of the shaded triangle has the same area and therefore the remaining area is two-thirds of ABC The ratio of the sides are 8 : 5 : 7 Area of triangle = √$s(s−a)(s−b)(s−c))
where, semi perimeter (s) = $$frac{8 + 5 + 7}{2}$ = 10 Area = √$10(10 − 8)(10 − 5)(10 − 7))
Area = √(10(2)(5)(3))
Area = 10√3
Area of ABC = 25 × 10 √3 (As 8 : 5 : 7 multiplied by 5 gives the sides of triangle ABC)
Therefore area of the remaining traingle = $$frac{2}{3}$ × 250√3 = $\frac{500}{√3}$ The question is "From a triangle ABC with sides of lengths 40 ft, 25 ft and 35 ft, a triangular portion GBC is cut off where G is the centroid of ABC. The area, in sq ft, of the remaining portion of triangle ABC is :" Hence, the answer is $\frac{500}{√3}$ Choice B is the correct answer. Signup and sample 9 full classes for free The Best Online CAT Coaching Courses. Signup ! Already have an Account? CAT Coaching in ChennaiCAT 2020Enroll at 44,000/- Next Weekend Batch Starts Sun, Feb 23rd, 2020 Best CAT Coaching in ChennaiRegister Online, get Rs 4000/- off Attend a Demo Class Where is 2IIM located? 2IIM Online CAT Coaching A Fermat Education Initiative, 58/16, Indira Gandhi Street, Kaveri Rangan Nagar, Saligramam, Chennai 600 093 How to reach 2IIM? Phone:$91) 44 4505 8484
Mobile: (91) 99626 48484
WhatsApp: WhatsApp Now
Email: prep@2iim.com