Test Papers – ICSE – Class – X
MBA Entrance Logical Reasoning and Direct Interpretation, Groups and Conditionalities, Module 2
Hello everybody let’s go onto Groups and Conditionalities part 2 from a group of 6 boys P, Q, R, S, T and U and five girls, A, B, C, D and E a basketball team of 6 members chosen under the following conditions D and E have to be together. R cannot go with D. P and S have to be together. S cannot go with A. R and B have to be together. Q and C have to be together. Q and T cannot be teamed together. Now there are 6 boys PQRST and U and there are five girls ABCD and E. D and E will always be together. D and R will never be together. P and S are always together. S and A never together. R and B will always be together. Q and C will always be together. And Q and T would never be together. So this is the information which is given to us correct then now let’s solve all one by one each questions. The first question, if team consists of 4 girls the members of the team are how many girls we need to select four if four girls have to be selected which means out of 5 we need to leave one girl, correct if we suppose to leave one girl which means D and E will definitely come in because if I don’t select ether of them the second will automatically won’t be selected because both of them are coming together one goes the other definitely goes correct if D is selected then you can see R cannot be selected if R is not selected
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MBA Entrance Logical Reasoning and Direct Interpretation, Groups and Conditionalities, Module 1
Hello everyone lets learn Groups and Conditionality part 1 so what is groups and conditionality we learned matrix arrangements correct so groups and conditionality is nothing but standard version of matrix arrangement with some terms and condition apply let’s see first example There are 8 levers I, II III, IV, V, VI, VII, VIII to a safe in a bank, lever I is on whenever the main i.e. (the power supply) is on. None of the levers is on if the power supply is off. Lever II is on whenever the pin number is not input correctly. Lever III is on whenever the date of birth is not input correctly. Lever IV is on whenever both I and III are on. Lever V is on whenever either, but not both II and III is on. Which mean we can say that if lever IV is on lever V as to be off and vice versa. Lever VI is on whenever the mobile number is input incorrectly. Lever VII is on whenever any two or more of the parameters are not input correctly and lever VIII is on whenever all these parameters are input incorrectly. Let’s see this set and how to solve the questions now ideally in groups and conditionality we should solve one by one question rather than solving the entire set let’s see what is given to us in the set so the main as to be kept on ok now lever II will be on when the pin number is input incorrectly.
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MBA Entrance Logical Reasoning and Direct Interpretation, Arrangement, Module 2
Hello friends welcome to this session in this session let’s see basics of circular arrangement so you are sitting here facing inside now X is seated to your left so what all positions X can take as you can see X can be here, here or here and here or here, here or here so do you realize in circular X can take all these positions and now we have a question that actually is X sitting to my left or is it sitting to my right that is why when in circular arrangement X is seated to your left it is always taken as immediate left understood similarly if x is seated to your right then it will be to your immediate right in case of circular arrangement let’s go ahead if you are here again facing inside X is two places to your left this is pretty evident that X will be here at 9 o’clock position two places to your left similarly if X is to your right then X will be here two places to your right at 3 o clock position if you are here now I have changed your position but you are still facing inside then do you realize the left side and right side has just flipped now to your left X will be on the 3 o’clock position and on your right he will be on your 9 o’clock position that means can I say when I am taking condition as on my left hand side and when I am facing inside I will always have to go in clockwise direction irrespective of where do I sit similarly if I want to go to my right hand side and I am facing inside then I will have to go anti clockwise direction important point to remember understood great let’s go ahead I just changed your position now you are sitting and you are facing outside now let’s see how this left and right is going to change do you realize now the right hand side is going to become the clockwise direction because now I am facing outside and similarly the left hand side has
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MBA Entrance Introduction To Percentage, Reciprocal Percentage Equivalents, Module 3
Hello let’s look at reciprocal percentage equivalents part 3 so we have seen this earlier that 1 by 8 is 12.5 % correct now here will be looking at multiples of reciprocals that we have seen till now so for example 3/8 is nothing but as 37.5% how do I get 3/8 it is nothing but as 3 * 1/8 that is 3 * 12.5 which is 37.5% similarly 5/8 would be 62.5% and 7/8 would be 87.5% so now if I look at 1/9 it was 11.11% correct if we look at 2/9 I’ll get 22.22 so I’ll get all 2’s if I look at 5/9 I get 55.55 % all 5’s and if I look at it 8/9 it is 88.88 % it is all 8 so remember 1/ 11 was 9.09 % if I look at 3/11 it is 3*1/11 which is nothing but as 3* 9.09 % that is nothing but as 27.27 % similarly 6/11 would be 6*9 that is 54.54 % and similarly 7/11 would be 7* 9 63.63% if you observe here the part before decimal and after decimal is same now let’s looks at 1/7 if you remember it was 7 *2 =14, 14 * 2=28 1/7 was 14.28 now to remember the multiples of 1/7 for example 2/ 7, 3/7 and so on you need to remember this circle you observe 7 followed by 14,14 followed by 28, 7 doubles 14,14 Doubles 28 and 28 Doubles 56, but if you see it is 57 just keep the small change in your mind and remember the 7, 14, 28 and 5 so it is 1, 4, 2, 8, 5, 7 remember this circle so now let’s go ahead if I look at 2.7 it is 1/7* 2 which means it is 14.28*2 i.e nothing but as 28.56 correct but you see over there it is 28.57 because remember this circle 2/7 actually would come out to be 28.57
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MBA Entrance Introduction To Percentage, Reciprocal Percentage Equivalent, Module 2
Hello everyone now let’s go on to reciprocal percentage equivalents part 2 here I look Upon 1/18 its 5.55 % you can see over there statutory warning cigarette smoking is injurious to health easier way to remember 1 by 18 is the legal age of smoking is 18 years and 555 is a brand of cigarette better way to remember right ok let’s move ahead 1 by 17 is nothing but is 5.88 so if you compare with 1/18 5 remain as it is and from 5.55 it becomes 5.88 similarly if you look 1/22 the decimal part that is 0.55 remain as it is the integral part becomes 4 which means 1/22 is 4.55 now if I look at 1/20 it is 5% if you add 0.25 to 8 with 5.25% you get 1/19
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MBA Entrance Introduction To Percentage, Reciprocal Percentage Equivalent, Module 1
Hello everyone today will be looking at introduction to percentages in that will be looking at reciprocal percentage and equivalents part 1 so if I have looked at 1/2 it means it is 50% now if I half 1/2 what do you’ll get 1/ 4 which is nothing but as 25% again if I half ¼ that is 1/8 that is nothing but as 12.5% and again if we have this you get 1/16 which is nothing but as 6.25 % let’s move ahead and now if I look at 1/3 it is 33.33 % if we half 1/3 we get 1/ 6 which is nothing but as 16.67% again if we have 1 by 6 we get 1 by 12 that is nothing but as 8.33 percentage also if I look at 1/3 it is 33.33 % instead of 1/3 if I ask you 1/30 it would be 3.33% correct let’s move ahead 1/5 is nothing what is 20% if I half 1/5 I get 1/10 which is nothing but as 10% and if I find one third of 1/5 I got 1/15 which is nothing but as 6.66% now if you look at 1/7 it is nothing but as 14.28% if you observe this carefully you observe that
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