05 August 2023
L&T Infotech Logical Reasoning Questions
Explanation: Number of odd days in the first 1600 years = 0 odd day
Number of odd days in the next 300 years = 1 odd day
Now, 46 years had 11 leap years and 35 ordinary years.
The number of odd days in 46 years= (2×11) +(1×35) =22+35=57=8weeks and 1 odd day.
Now, we shall calculate the number of odd days in 1947 till 15 August.
Month completed January, February, March, April, May, June, July, August15 days overall 227 days
227 days=32 weeks and 3 odd days.
So, the total number of odd days till 15 August 1947=0+1+1+3=5.
On counting five days from Monday, we get Friday.
Therefore, 15 August 1947 was a Friday.
Explanation: E who is on the left end of the bench. C is on the second position from the right
E _ _ _ C _
A is to the right of B and E, A and C are sitting together, A is sitting next to B, D is not sitting with E
E B A C D
Position is A is between B and C
Explanation: The lady’s husband is the son-in-law of Shaloo’s mother. i. e. the lady is the daughter of Shaloo's mother. Thus, Shaloo is the lady's sister.
Explanation: ROAST is coded as PQYUR
R-2 = P
O+2 = Q
A-2 = Y
S+2 = U
T-2 = R
Similarly
S-2 = Q
L+2 = N
O-2 = M
P+2 = R
P-2=N
Y+2 = A
Option B
A.85
B.109
C.97
D.178
Explanation: 2nd number is exactly half of 1st number. (664/2 = 332)
3rd number is the addition of second number and the sum of the digits of 2nd number ( 332+ (3+3+2) = 340).
4th number is exactly half of 3rd number (340/2 =170)
Therefore, 5th number equal to 170+1+7+0 = 178 is the required answer
A.Only III is implicit
B.None of these
C.All are implicit
Only II and III are implicitExplanation: Clearly, the company intends to reduce the gap between income and expenditure by increasing the price of its product i.e. by keeping the expenditure unaltered and increasing the income only. So, II is implicit while I is not. However, the rival companies may or may not follow the same pursuit. So, III is not implicit.
Q8) Event (A): Company X is opening an office in city Y for marketing the company's products.
Event (B): Company X has chalked out an expansion plan, involving raising production capacity at its existing plants.
A.If 'A' is the effect and 'B' is its immediate and principle cause.
B. If 'B' is the effect and 'A' is its immediate and principle cause.
C. If 'A' is the effect but 'B' is not its immediate and principle cause.
D. If 'B' is the effect but 'A' is not its immediate and principle cause.
Explanation: Events (A) and (B) are related events and chronologically (B) occurs before (A) and because of as they are planning to increase capacity, they have to make a plan to sell their products also so they open new offices for marketing those products. But opening an office in a particular city, requires other events such as market survey etc. It is not the immediate and principle cause.
A.If only assumption I is implicit
B.If only assumption II is implicit
C.If either I or II is implicit
D.If neither I nor II is implicit
Explanation: Teachers have been instructed to maintain discipline in the class and point out the naughty students who do not let other students’ study. So, I is implicit.
Whether the student’s welcome the decision or not we can’t judge on it.
Explanation: 3*2 + 1 = 7
7*3+2 = 23
23*4+3 = 95
Hence 95*5+4 = 479
A. TAT
B. UAT
C. UAV
D. TASExplanation: In this series, the third letter is repeated as the first letter of the next segment. The middle letter, A, remains static. Next term UAV
A.FKSSO
B.ELTSP
C.FMSOP
D.ELSSO
Explanation: SACHIN is coded as UDGMOU
S+2 = U
A+3 =D
C+4 = G
H+5 =M
I+6 = O
N+7 = U
Similarly
D+2 = F
H+3 = K
O+4 =S
N+5 = S
I+6 = O
Option A
A.12
B.13
C.14
D. 15Explanation: 2,3,5,7,11,17 all are prime numbers, hence the missing number is 13.
A. Father
B. Grandfather
C. Husband
D. Father-in-lawExplanation: This girl is the wife of the grandson of my mother – grandson of my mother means grandson of arnav mother, the boy will be arnav son and the girl is wife of arnav son , therefore arnav will be the father-in-law
1.Income 2.Respect 3. Education 4.Well-being 5.Job
A. 1,2,5,3,4
B. 1,3,2,5,4
C. 3,1,5,2,4
D. 3,5,1,2,4Explanation: The order of sequence will be Education, Job, Income, Respect and Well-being