CAT Quantitative Aptitude Questions 2022 – PaGaLGuY

Q39,40

2.11or 2.12

All but 1 angle of convex polygon add upto 1440 degree then remaining angle must be..?

Approach other than forming equations?

A train 150 m long travels at a speed of 100 kmph. A man standing on top of the train runs from one end  to the other at a speed of 20kmph in the same direction as the train.How many seconds will he take to reach the other end.

  • 2.25
  • None of these
  • 27
  • 22.5

0 voters

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Q16,19,24

Three dice are rolled simultaneously and the product of the three numbers appearing on the top is a prime number. What is the probability that the sum of the numbers appearing on the top is an odd number?

In a purse there are 60 coins, 40 one-rupee coins and remaining 50 paise coins. Eleven coins are picked simultaneously at random and are placed in a box. If a coin is now picked from the box, find the probability of it being a rupee coin?

How many integers between 100 and 10,000 contain exactly two 9s? Please tell the shortest way to solve this question

17,19,22,23

I need shortcut for these types of questions:
Three classes x,y,z takes an algebra test. The avg. scores in class x,y,z are 83, 76, 85 respectively. The avg scores of all students in class x and y together is 79 and the avg score of all the students in class y and z together is 81. What is the avg of all the three classes?

21 approach plz

http://i.imgur.com/lfmvLBk.png 

http://i.imgur.com/DrX7Lo5.png 

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4-10 ??

Does anyone have TIME coaching 200 videos lecture series?

Perumal decided to walk down the escalator of a tube station. He found that if he walks 26 steps, he requires 30 s to reach the bottom. However, if he walks 34 steps he would only require 18 s to reach to the bottom. If the escalator is moving downwards, find the number of steps in the escalator.

How to solve this? Approach please? Answer is 46

How to add / multiply/take LCM two numbers which are in base 8 ? 12 th , 16