31 July 2024
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Reasoning Ability
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Infosys Mathematical Ability Questions
RT3 = FELT.
As per the condition, when the unit digit in RT is cubed. The resultant number also should end as T.
So, the possibilities when a digit is cubed and gives the same digit are 4, 5, 6, 9.
143= 2744. Since every alphabet takes unique value. LT = 44, so can’t be possible.
153= 3375. Since every alphabet takes unique value. FE = 33, so can’t be possible.
163 = 4096. Since no letter takes 0. This can’t be possible number.
193= 6859. This number fulfils the condition perfectly.
So, FELT = 6859.
R + E + L + T = 1 + 8 + 5 + 9 = 23.
- L sits second to the left of R.
- R sits in the middle of one of the sides.
- N sits fourth to the right of his wife and his wife is not an immediate neighbor of L or R.
- M sits third to the right of her husband.
- M does not sit at any of the corners.
- Only O sits between M and S.
- S is the husband of L.
P is a male.
Which of the following is true with respect to the given sitting arrangement?
A. No two males are immediate neighbors of each other.
Since each desired number is divisible by 5, so we must have 5 at the unit place. So, there is 1 way of doing it.
The tens place can now be filled by any of the remaining 6 digits (2, 3, 4, 6, 7, 9). So, there are 6 ways of filling the tens place.
The hundreds place can now be filled by any of the remaining 5 digits. So, there are 5 ways of filling it.
number of3 digit numbers can be formed are = (5 x 6 x 1) = 30.
The present age of Rony? is 22 years
Step-by-step explanation:
Let present age of the son =x
Present age of the father =2x
Now, according to question, we have to find
2x−20=12×(x−20)
2x−20=12x−240
10x=220
x=22
Present age of son =22 years
Present age of father =2×22=44 years.
Hence, we get the present age of Rony? as 22 years
Explanation:
Logic between the numerical place values of the alphabets is
FIZU = 6 9 26 or 0 21
+2 -8 +2 -12
HABI = 8 1 2 9
The only option which has the same logic is Option D.
LICA = 12 9 3 1 or 21
+2 -8 +2 -12
NAEO = 14 1 5 15.
When going with option verification, only when + and x are interchanged the equation can be satisfied.
4 x 8 ÷ 16 + 13 – 7 = 8.
When going with option verification, only interchanging in option B will satisfy the equation.
Option B - 5 + 7 x 2 -6 = 0, which is actually not correct.
After interchanging as per the question,
5 – 6 x 2 + 7 = 0.
Given expression = 32 ÷ 8 - 4 x 12 + 4
Changing the operators as per the question, the final expression will be,
32 + 8 ÷ 4 – 12 x 4 = - 14.
Given expression = 245 - 35 ÷ 3 + 14 x 36
Changing the operators as per the question, the final expression will be,
245 ÷ 35 x 3 - 14 + 36 = 43.
Given that,
12th is the rank of Ram from the top.
27th is the rank of Ramesh from the bottom.
That means,
There are 11 students are above Ram.
And 26 students are below Ramesh.
After they interchanged their positions,
Ram's rank became at 18th.
Then,
there will be 17 students above.
As Ram is now in Ramesh's position there are 26 students below Ram.
Therefore,
Total students = 17+26+1
Total students = 44.
Number is: 57645361
the digit at unit place is decreased by 1 -> 57645360
the digit at ten’s place is increased by 2 -> 57645380
the digit at hundreds’ place is decreased by 1 -> 57645280
the digit at thousands’ place is increased by 2 -> 57647280
and so on for remaining digits going with -1, +2, -1, +2 format gives the below numbers
57637280
57837280
56837280
76837280.
Since all the digits were applied with the given logic, at the end the final number obtained is 76837280. In which 7 and 2 appeared twice. So, 2 numbers appeared twice.
The logic given for the word FAN is adding the alphabetical place values.
FAN – 6 1 14 = 6+1+14 = 21.
Applying the same logic,
COME – 3 15 13 5 = 3 + 15 + 13 + 5 = 36.
Applying the conditions from the data in the question changes the expression from 18 A 15 B 75 C 90 D 23 to 18 - 15 ÷ 75 x 90 + 23.
The answer for the expression, 18 - 15 ÷ 75 x 90 + 23. is 23.
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