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Question Bank - Equations - Set 1

Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan said in Question Bank - Equations - Set 1:

1/(a+b) + 1/(b+c) + 1/(c+a)

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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan
is it -1 ?
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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan 2
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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan 2
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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan

-3
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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan
6 ?
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Amar Rajput last edited by @anurag_chauhan

@anurag_chauhan 2
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Amar Rajput last edited by @anurag_chauhan

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Amar Rajput last edited by @anurag_chauhan

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question bank 47 theory of equations 14

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cat questions86 quant - mixed bag73 question bank47 theory of equations14 permutation & combination11 time speed & distance10 cat questions lr10 set theory7

Quant Boosters - Hemant Malhotra - Set 10
Quant - Boosters • quant - mixed bag • • hemant_malhotra

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a^2 - a + 1 mod 13 = 0a = 10^pa(max) = 10^910^18 - 10^9 + 1 mod 13 = 1 + 1 + 1 = 310^16 - 10^8 + 1 mod 13 = 3 - 9 + 1 = 810^14 - 10^7 + 1 mod 13 = 9 + 3 + 1 = 13 mod13=0 sop = 7 N = 16! + 89 mod 323323 = 17 * 19N mod 17 = -1 + 4 = 3N mod 19 = 9 + 13 = 3q = 3 46c23 mod 23 = = 2=r p + q + r = 12
Question Bank - CAT level Questions On Parajumbles Topic
Critical Reasoning • question bank parajumble • • mbatious

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@mbatious CDBA suits better?
Question Bank - Equations - Set 2
Quant - Boosters • theory of equations • • anurag_chauhan

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1, 3, 6, 10, 15 ..... Let nth term = an^2 + bn + c Put n = 1 a + b + c = 1 4a + 2b + c = 3 9a + 3b + c = 6 5a + b = 3 3a + b = 2 2a = 1 a= 1/2 b = 2-3/2= 1/2 C = 0 So (1/2)n^2 + 1/2(n) Nth term = 1/1/2(n^2+n)= 2/n(n+1) => 2 [ 1/n - 1/(n+1)] 2 [ 1/1-1/2+1/2-1/3+.....+1/9-1/10] 2[ 1-1/10] 2 * 9/10 = 9/5
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@kamal_lohia thank you @zabeer also , has anyone posted memory based LRDI questions from 2015 and 2016 ?
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Number Of Solutions For Equations Involving Difference/Sum Of Perfect Squares - Hemant Malhotra
Quant Primer • theory of equations • • hemant_malhotra

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@vishwa2017 for question no. 2, 256 is a perfect square, so i think answer should be 14
Quant Boosters - Hemant Malhotra - Set 5
Quant - Boosters • quant - mixed bag • • hemant_malhotra

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Method1- Let's say original weight is 100 now he is taking 20% extra so total 120 and selling 10% less so 90. So (120-90/90) * 100 = 30/90 * 100= 33.33% Method2- multiplying factor1 * 10/9 * 6/5 = 1.33 so 33%

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