Question

Can anyone give the answer of the above question ?

Answer 1

It's answer is 6 .It is a question of fiitjee paper . Add all and divide by 4.as 4+12+3+9=28 divide by 4 and answer=7 similarly (21+5+16+?)/4=12.

x=6

Answer 2

Here your answer goes

Let us Suppose the five circle in each ( 4 ) figure is A  , B  , C  , D AND E

( i ) Figure

Now , For obtaining result use the formula

⇒ Reverse of  b* c -  a * b

So , From the First figure

⇒ 12 * 7 - 7 * 4

⇒ 84 - 28

( Now As We say reverse that means if ab is the required product then it becomes ba )

⇒ 48 - 28

⇒ 20

Now , Use the formula

Obtained Result - Reverse of CE

⇒ 20 - 7 * 3

⇒ 20 - 21

⇒ Reverse ( 21 ... is 12 )

⇒ 20 - 12

⇒ 8

Now , Add 1 in the obtained result to get the final result

⇒ 8 + 1

⇒ 9

( ii ) Figure

Use the formula ,

⇒ Reverse of  b* c -  a * b

So , from the second figure

⇒ 5 * 9 - 13 * 9

⇒ 45 - 117

⇒ Reverse 45 .... 54

⇒ 54 - 117

⇒ -63

Note :- As Our Obtained result is negative we may only Choose one  digit for final result if all the process of obtaining result done and We can not reverse  any number further for seeking of final result

Now , Use the formula

Obtained Result -  Reverse of CE

Use Obtain Result sign is positive as we have not reverse CE as DE

⇒ 63  - 108

⇒ -45

Now , as per our previous discussion it is negative we can take one digit ( once's place ) of the obtained

45

( As Result is above 40 take the big number )

Obtained Result = 5

Now , add one to obtained Result to get final result

⇒ 5 + 1

⇒ 6

( iii ) Figure

Use the formula ,

⇒ Reverse of  b* c -  a * b

So , from the second figure

8 * 5 - 3 * 5

⇒ 40 - 15

⇒ 04 - 15 ( Reverse )

⇒ -11

Note :- As Our Obtained result is negative we may only Choose last digit for final result if all the process of obtaining result done and We can not reverse  any number further for seeking of final result  

Now , Use the formula  

Obtained Result -  Reverse of CE  

Use Obtain Result sign is positive as we have not reverse CE as EC

11 - 5 * 7

⇒ 11 - 37

⇒ -26

(  As Result is Below 40 We choose Smaller number and We cannot add it further )

⇒ -26

⇒ 2 is the final result

( iv ) figure

Use the formula ,

⇒ Reverse of  b* c -  a * b

So , from the second figure

5 * 12 - 12 * 21

⇒ 60 - 12 * 21

⇒ 06 ( Reverse )

⇒ 06 - 12 * 21

⇒ - 246

Note :- As Our Obtained result is negative we may only Choose last digit for final result if all the process of obtaining result done and We can not reverse  any number further for seeking of final result  

Now , Use the formula  

Obtained Result -  Reverse of CE  

Use Obtain Result sign is positive as we have not reverse CE as EC

246 - 12 * 16

⇒ 246 - 192

⇒ 54

( As Result is above 40 take the big number )

⇒ 54

⇒ Obtained Result = 5

Now , add one on obtained result to get final result

⇒ 5 + 1

⇒ 6

Therefore , Option ( B ) is correct

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Have a look at this attachment for arrangement of ABCDE

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