What are X and Y? 7 8 6 9 5 10 X Y 3 12

Chandrajeet Yadav   9 years AGO

Alternatively two A.P. Series starting from first term 7 & 8 with common difference 1 in decreasing and increasing nature respectively.

7, 8, (7-1), (8+1), (7-2), (8+2), (7-3), (8+3), (7-4), (8+4)

X= 4, Y= 11

Like? Yes (5) | No   

Testing Account   9 years AGO

7-1=6 (3rd number),
8 1 =9 (4th number ),
like wise
5-x=1
10 y=1
x is 4 , y is 11

Like? Yes (1) | No   

Devendra Marghade   9 years AGO

Alternate series: 7,6,5,4,3 and 8,9,10,11,12
So X=4, Y=11
Option 6)

Like? Yes (2) | No (1)  

samita mandal   9 years AGO

its combination of two sequences
1st - 7 6 5 4 3 in decresing order
2nd- 8 9 10 11 12 in increasing order
x is 4 nd y is 11
option 6

Like? Yes (1) | No   

harshavi   9 years AGO

the first series is as 7,6,5,4,3
and the second series is as 8,,9,10,11,12
and thus x and y are 4 and 11

Like? Yes (1) | No   

Abhisheak Kumar Missu   9 years AGO

series1--7,6,5,4,3
series2--8,9,10,11,12
series will be--7,8,6,9,5,10,4,11,3,12
missing no X=4,Y=11

Like? Yes (2) | No (1)  

SHUBHAM   9 years AGO

7+1,8-2,6+3,9-4,5+5 ....and so on,,solving,we get 4&11

Like? Yes (1) | No   

RENU KUMARI   9 years AGO

the series is divided into two parts the first one is 7, 6, 5, 4, 3, 2 and the second one is 8,9,10,11 so x=4 and y=11

Like? Yes (1) | No   

Lakshmipathi   9 years AGO

Consider alternate numbers as set, then in first set numbers are decreasing by 1 and in second set numbers are increasing by 1

Like? Yes (1) | No   

Badarala Pavani   9 years AGO

two series
one is decreasing 7 6 5 so x=4
second series is increasing 8 9 10 so y=11

Like? Yes (1) | No   

Yekollu Muneeswar   9 years AGO

alternate terms- 7 ,6, 5, 4, 3

8 9 10 11 12

Like? Yes (2) | No (1)  

ARVIND KHATIK   9 years AGO

Number at odd position is decreasing and even position increasing.

Like? Yes (1) | No   

RUPNARAYAN RANA   9 years AGO

7-1=6
6-1=5
5-1=4
4-1=3
so one number (X)= 4
8+1=9
9+1=10
10+1=11
11+1=12
another number (Y)=11
Hence option 6) is correct.

Like? Yes (1) | No   

SURAN PRASAD PENKE   9 years AGO

each time adding and subtracting is taking place to previous number
and +1 -2 +3 -4 +5 -6 +7 -8 +9
7+1=8
8-2=6
6+3=9
9-4=5
5+5=10
10-6=4
4+7=11
11-8=3
3+9=12

Like? Yes (1) | No   

Jagadeesh   9 years AGO

7+1 =8
8-2 =6
6+3 =9
9-4 =5
5+5 =10
10-6 =4
4+7 =11
11-8 =3

Like? Yes (1) | No   

shaikshabeena   9 years AGO

divide in two series u get
7 6 5 4
8 9 10 11

Like? Yes (1) | No   

deepak   9 years AGO

7 6 5 4 3
and other series
8 9 10 11 12
so ans is 4 and 11

Like? Yes (2) | No (1)  

phani mamidi   9 years AGO

difference of first two numbers is summed to first number then we get the second number

Like? Yes (1) | No   

RAHUL KUMAR   9 years AGO

A/c to series
7 8 6 9 5 10 X Y 3 12
take series as 7 6 5 X 3 ....... (I) and
8 9 10 Y 12 ....... (ii)
in series (1) next term is decreses by 1 and in series (2) next term is increases by 1
So X = 4 and Y = 11
option (6) is correct answer.

Like? Yes (1) | No (1)  

susmit   9 years AGO

+1 -2
+3 -4
+5 -6 +7 so
10-6 and 4+7
4 and 11

Like? Yes (1) | No (1)  

pooja   9 years AGO

odd terms are decresed by 1 even terms are increased by 1 and hence 5-1=4 , 10+1=11

Like? Yes (1) | No (1)  

RANJAN FADIA   9 years AGO

first digit is decreasing.. n second is increasing
so x=4
& y=11

Like? Yes (1) | No (1)  

MRITUNJAY   9 years AGO

one series is increasing and second one is decreasing so that 4 and 11 is answer.

Like? Yes (1) | No (1)  

rahul shaw   9 years AGO

there r 2 series one incremented and other series is decremented ...so 4 and 11

Like? Yes (1) | No (1)  

Arifa   9 years AGO

7 8 6 9 5 10 X Y 3 12
7+1=8
8-2=6
6+3=9
9-4=5
5+5=10
10-6=4=X
4+7=11=Y
11-8=3
3+9=12
ANS OPTION 6)4 AND 11

Like? Yes (1) | No (1)  

CHANDAN KUMAR   9 years AGO

from left to right
odd place decreases from 7
(7 ,6,5,(4),3 )
so x = 4

similarly,
from left to right
even places increases from 8
(8,9,10, (11),12 )

so y=11

hence,

correct option is 6) 4 and 11

Like? Yes (1) | No (1)  

MD JAVED SALIM   9 years AGO

There are 2 series in this expression
1. 1st series is decreasing by 1
7 6 5 4(X) 3 . . .
2. 2nd series in increasing by 1
8 9 10 11(Y) 12 . . .
So , the actual series will be
7 8 6 9 5 10 4 11 3 12 . . .

Like? Yes (1) | No (1)  

sai   9 years AGO

7 6 5 X 3 all are in decrement order so the missing term is 4
8 9 10 Y 12 all are in increment order so the missing term is 11

Like? Yes (1) | No (1)  

Anuj Tiwari   9 years AGO

7, 8, 6, 9, 5, 10, X, Y, 3, 12

In this 7-1=6
and 8+1=9

Again 6-1=5
9+1=10

Again 5-1=4 (Value Of X)
10+1=11(Value Of Y) ANS

Again 4-1=3
11+1=12

Like? Yes (1) | No (1)  

s.h.h.praveen   9 years AGO

there are two a.p number series 1st=7,6,5,4,3...
2nd=8,9,10,11,12...

Like? Yes (1) | No (1)  

supreeta diwan   9 years AGO

7+8= 15.
6+9=15.
5+10=15.
4+11=15.
3+12=15.
so option is (6)

Like? Yes (1) | No (1)  

ARUN YADAV    9 years AGO

alternate series
first series is decreasing
and second series is increasing

Like? Yes (1) | No (1)  

Debanjan Maity   9 years AGO

1st number minus 1 will be the 3rd digit and 2nd number plus 1 will be the 4th digit

Like? Yes (1) | No (1)  

RAKESH   9 years AGO

7,6,5,4.......is series
9,10,11,12,,,is a series
so answer is 4,11

Like? Yes (1) | No (1)  

YASHWANT SAHU   9 years AGO

because 4 and 11 are the missing term in given series

Like? Yes (1) | No (1)  

Ashish Jaiswal   9 years AGO

7 8 6 9 5 10 X Y 3 12
there are two series
Ist series =7,6,5,4,3
IInd series=8,9,10,11,12
Then the value X=4
Y=11

Like? Yes (1) | No (1)  

karthiga   9 years AGO

In that Series, the alternate numbers 7, 6, 5, X, 3
It is in the form of Decreasing Consecutive Number So the X value is 2;
The next alternate numbers 8, 9,10, Y, 12
It is in the Form of Increasing Consecutive Number So the Y Value is 11;

Like? Yes (1) | No (1)  

Mahalakshmi   9 years AGO

it is a sequence
7 8
6 9
5 10
4 11 x and y
3 12

Like? Yes (1) | No (1)  

prasanthi   9 years AGO

every time the digit increment by +1,-2,+3,-4,+5,-6,+7,-8,+9

Like? Yes (1) | No (1)  

padmavati rai   9 years AGO

the series is formed by alternatively adding and subtracting the natural nos from the previous one

Like? Yes (1) | No (1)  

Shubham Raj   9 years AGO

first series decrease by 1,so-4
and second increase by 1 ,so-11

Like? Yes (1) | No (1)  

PRITI MISHRA   9 years AGO

8-7=1
8-6=2
9-6=3
9-5=4
10-5=5
10-x=6
x-y=7
hence x=4 and y=11

Like? Yes (1) | No (1)  

vimal tiwari   9 years AGO

odd position starts with 7 and decreases by 1

even position strts with 8 increases by 1

Like? Yes (1) | No (1)  

Vaithiyanaathan   9 years AGO

Odd numbers are added and even numbers are subtracted.
7+1=8
8-2=6
6+3=9
9-4=5
and so on.

Like? Yes (1) | No (1)  

Sushant Kumar   9 years AGO

7 8 6 9 10 4 11 3 12
firstly decreasing order then increasing order

Like? Yes (1) | No (1)  

Abhineet Singh   9 years AGO

add and subtract +1 and -1 ,you get value of X and Y as:
7-1=6,8+1=9,6-1=5,9+1=10,5-1=4(X),10+1=11(Y),4-1=3,11+1=12

Like? Yes (1) | No (1)  

ambar Vishwakarma   9 years AGO

every alternate number is a series of continuous integers.
7_6_5_X_3
8_9_10_Y_12

Like? Yes (1) | No (1)  

Hareesh   9 years AGO

7 +1 =8
7-1=6

7+2=9
7-2=5

7+3=10
7-3=4

7+4=11
7-4=3

and so on..

Like? Yes (1) | No (1)  

Dinesh thatti   9 years AGO

differences between them are as +1,-2,+3,-4,+5,-6,+7,-8,+9

Like? Yes (1) | No (1)  

Narasimha Swamy   9 years AGO

alternative numbers are in order which means odd position values are in decreasing order and even position values are in increasing order.

Like? Yes (1) | No (1)  

Navneet Goyal   9 years AGO

7 _ 6 _ 5 _ 4 _ 3 _decreasing by one
_ 8 _ 9 _ 10_ 11 _ 12

Like? Yes (1) | No (1)  

Aswini   9 years AGO

Numbers in odd places gradually decreased by 1 where as in even places increased by 1

Like? Yes (1) | No (1)  

prasenjit roy   9 years AGO

7 8 6 9 5 10 X Y 3 12
odd position numbers are7,6,5,4(x),3
Even position numbers are 8,9,11(y),12

Like? Yes (1) | No (1)  

Manoj   9 years AGO

first digit is in decrements of 1 and second digit in increment of 1

Like? Yes (1) | No (1)  

Tripti Garg   9 years AGO

The sequence can be split in 2 sequences:
7,6,5,X,3 and 8,9,10,Y,12
Clearly, the next term in 1st sequence is previous term-1, and in 2nd sequence is previous term+1.
Hence, X= 5-1=4, Y=10+1=11.

Like? Yes (1) | No (1)  

Rahul Mishra   9 years AGO

because in that digits first digit is decreasing and second one is increasing

Like? Yes (1) | No (1)  

tushar singh   9 years AGO

7,6,5,X,3 are in descending order, 4 will fit at position of X
8,9,10,Y,12 are in ascending order, 11 will fit at position of Y

Like? Yes (1) | No (1)  

SANKALP DUA   9 years AGO

8,9,10,11.12
7,6,5,4,3
these two series are mixed

Like? Yes (1) | No (1)  

oman jangir   9 years AGO

even place digit is incremented by 1 and odd place digit is decremented by 1

Like? Yes (1) | No (1)  

Somya Suravi Panda   9 years AGO

the series goes like..
+1, -2, +3, -4,....
so 10-6=4=x
4+7=11=y

Like? Yes (1) | No (1)  

Shubham Saxena   9 years AGO

7=G, 8=H
6=F, 9=I
5=E, 10=J
4=D, 11=k
3=C, 12=L

one time it is from left side thn from right side

Like? Yes (1) | No (1)  

Nandkishor jaiswal   9 years AGO

Each odd place is decreased by 1 and each even place is increased by 1
so, x=4 and y= 11

Like? Yes (1) | No (1)  

divya   9 years AGO

7 8 6 9 5 10 X Y 3 12
7-1=6
8+1=9
6-1=5
9+1=10
5-1=4
10+1=11
4-1=3
11+1=12

Like? Yes (1) | No (1)  

Udit Gopalka   9 years AGO

addition and subtraction signs go on alternatively with the numbers increasing as 1,2 and so on

Like? Yes (1) | No (1)  

Surabhi Yadav   9 years AGO

7 8 6 9 5 10 X Y 3 12
difference such as= +1,-2,+3,-4,+5,-6,+7,-8,+9
therefore
X=4 Y=11

Like? Yes (1) | No (1)  

pathrudu   9 years AGO

first series decreasing with 1 and second increasing with 1

Like? Yes (1) | No (1)  

jayachandra   9 years AGO

7+1=8
8-2=6
6+3=9
9-4=5
5+5=10
10-6=4*
4+7=11*
11-8=3
3+9=12

Like? Yes (1) | No (1)  

JENSI KARUNYA.S   9 years AGO

alternate num like 1st num 7 3rd num 6 likewise 7th num x is 4 and 8th num y is 11

Like? Yes (1) | No (1)  

Chandra chur anand   9 years AGO

one is decreasing by alternate and other one is incresing by alternate .

so x=4 and y=11

Like? Yes (1) | No (1)  

veerpal kaur   9 years AGO

acc. to pattern x=4 and y=11,bcoz in this pattern two successive no. have another no b/w them

Like? Yes (1) | No (1)  

swetha rekha   9 years AGO

it is following the sequence of +1 -2 +3 -4 and so on.so after subtracting -6 from 10 we get 4 and after adding +7 to 4 we get 11.hence,the answer is 4 and 11

Like? Yes (1) | No (1)  

YASODA SURENDRA   9 years AGO

7+1=8
8-2=6
6+3=9
9-4=5
5+5=10
10-6=4
4+7=11
11-8=3
3+9=12

Like? Yes (1) | No (1)  

mohan ranga rao   9 years AGO

odd place numbers=7,6,5,4,3,1
even place numbers =8,9,10,11,12
so x=4
y=11

Like? Yes (1) | No (1)  

Sushmita Ghanty   9 years AGO

the series is divided into two parts
7 6 5 X 3
&
8 9 10 Y 12
so we can easily solve X & Y 4 & 11 respectively

Like? Yes (1) | No (1)  

Divyani gupta   9 years AGO

it is combination of two series and two Adjacent number has sum 15
7 8 6 9 5 10 4 11 3 12

Like? Yes (1) | No (1)  

kundan roy   9 years AGO

in this series first +1 then -2 and then +3,-4,+5...
likewise added with numbers

Like? Yes (1) | No (1)