mh1 wrote:

Need clarification on following problem-

Q: 4(22)7, 12(42)9, 6(?)7

Q: 10(14)2, 6(12)3, 4(?)4

Q: 11(13)5, 9(7)6, 13(?)7

I'm having difficulty on the above question type- have not encountered these before.

Thanks

you have to look for the relation between the two numbers before and after the brackets .

first one is 4(22)7 is 4+7=11 and 11*2=22,and 12(42) 9= 12+9=21 and 21*2=42,

and 6+7=13 and 13*2=26.

similarly 10(14)2,6(12)3,4( )4.

in this 10+2=12 then add 2,6+3=9 then add 3 so the last one will be 4+4=8 then add 4 .so the answer must be 12.

finally 11(13)5,9(7)6,13( )7

we have to subtract 11-5=6,then multiply by 2and add 1,6*2+1=13

and 9-6=3,3*2=6+1=7,

13-7=6,6*2=12+1=13.

so it must be 13.