1. Pointing to a man, a girl says, 'He is the only son of my father's father.' How is she related to that man?
Answer:
Explanation:daughter=son of father's father
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2. Find the missing number:
1, 10, 3, 9, 5, 8, 7, 7, 9, 6, ?, ?
Answer:
Explanation:The series is a combination of two series, so one series is
1,3,5,7,9, -; So, the next number is 11
The other series is 10, 9,8,7,6,-; So, the next number is 5
Next two terms are 11 and 5
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3. 100,60,1020,70,110 what comes next?
Answer:
Explanation:1030...becoz each terms are increasing in ascending order if we consider it in a group of three
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4. Find the missing number:
J, ?, M, ?, M, J, ?, A, S, O, N, ?
Answer:
Explanation:Normally, letter series will be simply based on differences and multiplication.
Rarely, there will be other logics for letter series.
This is one such example, here all the letters are first letters of months.
J for January, F for Feb, M for March, A for April , M for May and so on.
The missing letters are F,A, J
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5. Find the next series
125,80,45,20,_
Answer:
Explanation:125=(5)square*5
80=(4)square*5
45=(3)square*5
20=(2)square*5
So next series is (1)square*5=5
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6. find the odd no out of:- 396, 462, 572, 396, 427, 671, 264
Answer:
Explanation:Addition of all the three digits of a number is an even number except 427.
Elaboration:
3+9+6=18
4+6+2=12
5+7+2=14
3+9+6=18
4+2+7=13
6+7+1=14
2+6+4=12
Here we can see that all the results are even except
4+2+7
that is 13.
Hence the answer will be 427
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7. Find the next term
0, 6, 24, 120,....
Answer:
Explanation:0*1 = 0
2*3=6
2*3*4=24
2*3*4*5=120
2*3*4*5*6=720
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8. 17171717171..... (101 digits) is divided by 625. What is the answer?
Answer:
Explanation:This question can be solved by understanding a pattern, we can call that as pattern of 5 powers,
If a number is divided by 5 or (5 power 1), we have to look at the last digit.
If a nu8mber is divided by 25(5 power 2), we have to look at the last 2 digits.
If a number is divided by 125, we have to look at the last three digits.
Similarly, if a number is divided by 625(5 power 4) we have to look at the last four digits.
So, the last four digits in this case are
7171, when 7171 is divided by 625, the remainder is 296.
So, the answer is 296.
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9. what will come in place of " ? "
S,M,?,W,T,?,S
Answer:
Explanation:T & F are the perfect answers
because given that are days in a weak
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10. A is twice as efficient as B and B is thrice as efficient as C, who can finish a job alone in 24 days. If A, B and C work on alternate days with A starting first, in how many days will the job finished?
Answer:
Explanation:As a:b=2:1,b:c=3:1(efficiency) time ratio to do the work=1:2,1:3 so a can complete in 4d,b can compete in 6d as mentioned c in 24d .a+b+c 3 day work=1/4+1/8+1/24=5/12.so 5/12*2=10/12 means a+b+c 6 days work=10/12.(5/6).
remaining work=1-5/6=1/6(.16666) but a can do 1/4(.25)work in i day and remaining(1/6) is less than a"s 1 day work i.e (1/4). so on 7th day work is completed
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