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Chapter - 13 (Must solve arithmetic question)
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Chapter 13

## 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 .

U
can u tell me difference between cost, costing, cost accounting and cost accountancy
Kajal Garg
a year ago
Did you not get by watching my lesson ?
N
Sir..please provide the solutions for last two questions . The lessons are over after this lesson.
NN
Please tell solution of last 2 questions sir
sir in the 1st question ; can we do like this -> let kanu's speed is 1 step / sec(as nothing is mentioned ; we can assume this) ; so escalator also 1 step / sec & meenu is n steps / sec ; so total time taken by meenu is 72/n (total distance / total speed) ; so total number of steps is = (speed of escalator + meenu) in 72/n seconds = (n+1) * (72 / n) = 72 + 72 / n ; as this needs to be an integer ; so 72/n must be an integer ; so n has 11 possible values ; y this can't be done sir ?
& also in each case total steps taken by kanu will also be integer
1. Must solve Arithmetic Questions before CAT Chapter 13 Follow Upvote

2. Practice problem for this lesson Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time). Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator?(assume that steps taken by Kanu is also an integer) a. b. 8 c. 9 In an examination comprising Q questions, Noor correctly solved 15 of the first 24 questions. Of the remaining questions, he answered one-fourth correctly. If he was able to answer 40% of the questions correctly overall, how many possible values can Q assume? a. Data insufficient b. 1 c. 2 d. More than 2

3. Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time). Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator?(assume that steps taken by Kanu is also an integer) a. 5 b. 8 c. 9

4. Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time). Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator? (assume that steps taken by Kanu is also an integer) a. 5 b. 8 c. 9 e scalab

5. Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time). Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator? (assume that steps taken by Kanu is also an integer) a. 5 b. 8 c. 9 e scalab e scalata. t (n-3 72

6. Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time) Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator? (assume that steps taken by Kanu is also an integer) b. 8 e scalat 2- 22

7. Meenu and Kanu simultaneously started climbing up an ascending escalator. Since they were in hurry, they also started climbing up the steps (taking one step at a time). Meenu took n steps in a time Kanu took 1 step, where n is an integer greater than 1. How many values of n is possible, if it is known that the speed of the escalator was the same as that of Kanu and Meenu took a total of 72 steps to climb up the escalator? (assume that steps taken by Kanu is also an integer) a. 5 b. 8 c. 9 spada kawa (72-32 th

8. In an examination comprising Q questions, Noor correctly solved 15 of the first 24 questions. Of the remaining questions, he answered one-fourth correctly. If he was able to answer 40% of the questions correctly overall, how many possible values can Q assume? a. Data insufficient b. 1 c. 2 d. More than 2

9. In an examination comprising Q questions, Noor correctly solved 15 of the first 24 questions. Of the remaining questions, he answered one-fourth correctly. If he was able to answer 40% of the questions correctly overall, how many possible values can Q assume? a. Data insufficient b. 1 c. 2 d. More than 2 No

10. In an examination comprising Q questions, Noor correctly solved 15 of the first 24 questions. Of the remaining questions, he answered one-fourth correctly. If he was able to answer 40% of the questions correctly overall, how many possible values can Q assume? a. Data insufficient b. 1 d. More than 2 CA

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