Recent questions and answers in Numerical Ability - GATE CSE Doubts

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Virtual GATE test series: Aptitude
$8,2,14,6,11,?,14,6,18,12$ What will be in place of ‘?’ in the series ?

answered 4 hours ago in Numerical Ability by chandrikabhuyan8 (88 points) | 17 views

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self doubt: to find HCF
$\gcd(36,k)=6$, then what is the k? I know the only naive method,can anyone explain any other method.

answered Oct 8 in Numerical Ability by !KARAN (118 points) | 25 views

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Aptitude Permutation and Combination
A 7 digit number is to make in such a way that the number formed is even. Repetition is not allowed I am attaching my approach, I want to clarify whether my approach is right or wrong My approach:-

answered Sep 30 in Numerical Ability by PriteshSingh (39 points) | 38 views

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MADE EASY APTITUDE TEST
What will come in the place of question (?) mark in the following number series. 726,799,878,961,1050,? 1149 1147 1145 1143

answered Sep 14 in Numerical Ability by Vimal Patel (217 points) | 14 views

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if A and B are mutually exclusive event with P(A)=0.3 P(B)= 0.5 then $P(A \cap B) =$

answered Sep 3 in Numerical Ability by GAITONDE (1.2k points) | 35 views

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#permuatationandcombination
Q.How many bit strings of length eight contain either three consecutive 0s or four consecutive 1s? 148 198 147 197

answered Sep 1 in Numerical Ability by Bikram (1.2k points) | 14 views

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#permutationandcombination
Q.How many bit strings of length 10 contain either five consecutive 0s or five consecutive 1s? 222 198 256 128

answered Sep 1 in Numerical Ability by Bikram (1.2k points) | 10 views

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Made Easy Test Series:Aptitude
Consider a set of numbers $\left \{ 1,7,7^{2},7^{3},.......,7^{100} \right \}$.The ratio of last number and ratio of last number and sum of remaining number closest to _______________ will ans be $60$ or $6$?? Plz someone verify.

answered Aug 17 in Numerical Ability by Satbir (2.5k points) | 16 views

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Made easy workbook clocks
A clock is set right at 7 AM,and the clock loses 15 min in 24 hrs.what is the correct time when it shows 4PM.after 2 days?

answered Aug 12 in Numerical Ability by edijaocfar | 11.8k views

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Self Doubt: Apti Made Easy
A rectangle of height 100 squares and width 200 squares is drawn on a graph paper. It is colored square by square from top left the corner and moving across in a spiral turning right whenever a side of the rectangle or a colored square is reached. Which square is colored last ... - the bottom right square is on row 100 and column 200) a) 50,50 b) 51,50 c) 51,150 d) 50,150

answered Aug 8 in Numerical Ability by Debdeep1998 (49 points) | 55 views

–1 vote

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Quant Apti Arun sharma
Each person’s performance compared with all other persons is to be done to rank them subjectively. How many comparisons are needed to total, if there are 11 persons? (does this ques suggests sorting of 11 no.s? that intuitively takes mind to count comparisons while sorting)

answered Aug 5 in Numerical Ability by Satbir (2.5k points) | 15 views

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Aptitude simple intrest
The present worth of Rs. 1404 due in two equal half-yearly installments at 8% per annum simple interest is: [A]. Rs. 1325 [B]. Rs. 1300 [C]. Rs. 1350 [D]. Rs. 1500

asked Jul 26 in Numerical Ability by shiva0 (19 points) | 7 views

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aptitude percentages
Rahul went to a shop and bought things worth Rs. 25, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items? A. Rs. 15 B. Rs. 12.10 C. Rs. 19.70 D. Rs. 16.80

answered Jul 24 in Numerical Ability by Rudr Pawan (577 points) | 13 views

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1 answer

aptitude on trains
Chennai express starts at 8 am from A towards B and Mumbai express starts at 8 am from B towards A. After their meet, Chennai express takes 18 hours to reach B and Mumbai express takes 8 hours to reach A. Then which of the following is their speed's ratio? A. 1:02 B. 2:03 C. 1:03 D. None of these can anyone answer with explanation???

answered Jul 20 in Numerical Ability by Debargha Bhattacharj (1.5k points) | 7 views

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#apti previous tcs apti
Hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely3. A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one direction and the. The hare and tortoise meet when the hare has ... . By what factor should the hare increase its speed so as to tie the race? A. 37.8 B. 8 C. 40 D. 5

asked Jul 17 in Numerical Ability by shiva0 (19 points) | 12 views

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what is the question says about and answer,tcs previous question

asked Jul 17 in Numerical Ability by shiva0 (19 points) | 11 views

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Let G be abelian group of order 125 then number of elements in z G is

asked Jul 14 in Numerical Ability by ridhhhhhi khushi (6 points) | 11 views

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1 answer

Probability , permutations and combinations
What is the solution for the below problem, can anyone explain clearly,.........

answered Jun 24 in Numerical Ability by Arkaprava (117 points) | 14 views

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1 answer

Permutations and combinations , aptitude
What is the solution of the below problem. Explanation please....…

answered Jun 24 in Numerical Ability by Arkaprava (117 points) | 8 views

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#Self_doubt(aptitude)
A,B,C invests their shares are in the ratio 1/2:1/3:1/4. A withdraws half of his capital after 10 months. A profit of 378 is divided among them what is B's share?? While solving this problem how to convert fractional ratios into normal ratio??

asked Jun 21 in Numerical Ability by G Shaheena (8 points) | 33 views

+1 vote

1 answer

NIELIT-2018 December
Look at this series : 25, 25, 37, 37, __, 51 , What number should fill the blank? (A) 51 (B) 39 (C) 23 (D) 25

answered Jun 19 in Numerical Ability by anonymous | 33 views

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1 answer

GATE2016 Aptitude Set 3: GA-8 (Self Doubt)
I was trying to solve this question asked in GATE 2016. However, I have this doubt- When we see the reflection of a clock as 1:30 on the mirror, won’t the time shown by the actual clock be 11:30 rather than 10:30? I am given an image for reference (left one is the reflection, right one is the original clock).

answered Jun 18 in Numerical Ability by Arkaprava (117 points) | 23 views

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