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Class - 06

## Bharat Gupta is teaching live on Unacademy Plus

Bharat Gupta
Engineer by degree Mathematician by Heart. Having 22 years of teaching experience. Visit my youtube channel BHARAT GUPTA-RADIX .

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1. IIFT 2018 Quantitative solution Part -6

2. Nitin installed an overhead tank on the roof of his newly constructed house. Three taps are connected to the tank: 2 taps A and B to fill the tank and one tap C to empty it, Tap A alone can fill the tank in 12 hours, while tap B alone takes one and half times more time than tap A to fil the tank completely. Tap C alone can empty a completely filled tank in 36 hours. Yesterday, to fill the tank, Nitin first opened tap A, and then after 2 hours opened tap B also. However after 6 hours he realsed that tap C was open from very beginning. He quickly closes tap C. What will be total time required to fill the tank? a. 8 hours 48 min b. 8 hours 30 min c. 9 hours 12 min d. 9 hours 36 min

3. Nitin installed an overhead tank on the roof of his newly constructed house. Three taps are connected to the tank: 2 taps A and B to fill the tank and one tap C to empty it, Tap A alone can fill the tank in 12 hours, while tap B alone takes one and half times more time than tap A to fill the tank completely. Tap C alone can empty a completely filled tank in 36 hours. Yesterday, to fill the tank, Nitin first opened tap A, and then after 2 hours opened tap B also. However after 6 hours he realised that tap C was open from very beginning. He quickly closes tap C. What will be total time required to fill the tank? a. 8 hours 48 min c. 9 hours 12 min b. 8 hours 30 min d. 9 hours 36 min A 12 3 C -36 2 S ln lb-P3-6-16

4. In a survey on the viewership of the TV channels, 73% of those surveyed viewed at least one of the three channels: Star Plus, Sub TV and Sony. 38% of those surveyed viewed Star Plus, 39% viewed Sony, and 23% viewed Sab TV. 11% of all those surveyed viewed all the three channels. What percentage of those surveyed, viewed more than one of the three TV channels? a. 16 b. 38 c. 27 d. Data Inadequate

5. In a survey on the viewership of the TV channels, 73% of those surveyed viewed at least one of the three channels: Star Plus, Sub TV and Sony. 38% of those surveyed viewed Star Plus, 39% viewed Sony, and 23% viewed Sab TV, 11% of all those surveyed viewed all the three channels. What percentage of those surveyed, viewed more than one of the three TV channels? a. 16 b. 38 c. 27 d. Data Inadequate 27% MDYe au -O 0 39)

6. Using 5 dots in each of the lines PQ, RS, TU and VW as the vertices, how many triangles can be drawn such that the base is on any one of the above lines? a. 120 b. 150 . 200 d. 600

7. Using 5 dots in each of the lines PQ, RS, TU and VW as the vertices, how many triangles can be drawn such that the base is on any one of the above lines? a. 120 b. 150 c. 200 d. 600

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