Verbal Reasoning - Arithmetic Reasoning - Discussion
Discussion Forum : Arithmetic Reasoning - Section 1 (Q.No. 8)
8.
A girl counted in the following way on the fingers of her left hand : She started by calling the thumb 1, the index finger 2, middle finger 3, ring finger 4, little finger 5 and then reversed direction calling the ring finger 6, middle finger 7 and so on. She counted upto 1994. She ended counting on which finger ?
Answer: Option
Explanation:
Clearly, while counting, the numbers associated to the thumb will be : 1, 9,17, 25,.....
i.e. numbers of the form (8n + 1).
Since 1994 = 249 x 8 + 2, so 1993 shall correspond to the thumb and 1994 to the index finger.
Discussion:
41 comments Page 2 of 5.
Garima said:
8 years ago
Why +1 add in 8n+1?
Sumit Krishn said:
8 years ago
The answer must be "Ring Finger" because,
One hand can count upto 7 each time. Then, 1994/7 gives 284 as quotient and 6 as remainder. So, after counting 284 time on the same hand, she starts counting again and 1994 will come on the 6th place, that is the ring finger.
One hand can count upto 7 each time. Then, 1994/7 gives 284 as quotient and 6 as remainder. So, after counting 284 time on the same hand, she starts counting again and 1994 will come on the 6th place, that is the ring finger.
Rahul Kumar said:
8 years ago
Since, Index no. _ 2,8,10,16,......
Middle Finger _ 3,7,11,15,......
So, middle finger is in A.P. with c.d.= 4.
Divide 1994/2 = 498 * 4 + 2.
Now, 1992 falls on the middle finger.
So, increasing +2 we get Index finger.
Middle Finger _ 3,7,11,15,......
So, middle finger is in A.P. with c.d.= 4.
Divide 1994/2 = 498 * 4 + 2.
Now, 1992 falls on the middle finger.
So, increasing +2 we get Index finger.
Divya Dharani said:
9 years ago
ANS : INDEX FINGER.
4 * 1 = 4 falls on ring finger
4 * 2 = 8 falls on index finger
4 * 3 = 12 falls on ring finger
4 * 4 = 16 falls on index finger and so on
So, (4 * odd number) falls on ring finger and (4 * even number) falls on index finger.
1994 => nearest 4 multiple less than 1994 is 1992 which is 4 * 498 (4 * even number) -> this falls on index finger. So, 1993 falls on thumb and 1994 falls on INDEX FINGER.
4 * 1 = 4 falls on ring finger
4 * 2 = 8 falls on index finger
4 * 3 = 12 falls on ring finger
4 * 4 = 16 falls on index finger and so on
So, (4 * odd number) falls on ring finger and (4 * even number) falls on index finger.
1994 => nearest 4 multiple less than 1994 is 1992 which is 4 * 498 (4 * even number) -> this falls on index finger. So, 1993 falls on thumb and 1994 falls on INDEX FINGER.
Ravindra Deshpande said:
9 years ago
Ring finger is the correct answer.
It's only at first instance that all 5 fingers are counted. Then onwards it's only 4 fingers every time. Last set is 249th set.
Odd sets begin with Thumb & end at little finger (249x 8 + 1= 1993).
Hence 1994 will end at Ring finger.
It's only at first instance that all 5 fingers are counted. Then onwards it's only 4 fingers every time. Last set is 249th set.
Odd sets begin with Thumb & end at little finger (249x 8 + 1= 1993).
Hence 1994 will end at Ring finger.
Aryanjain said:
9 years ago
(8 * 249 + 1) = 1993 which represents thumb.
Pooja Gowda said:
9 years ago
Thumb 1.
Index finger 2.
Middle finger 3.
Ring finger 4.
Little finger 5.
Ring finger 6.
Middle finger 7.
Index finger 8.
Thump 9.
Index finger 10.
So on.
Sequence of numbers with thumb are 1, 9, 17, ....
This series can be represented by (8n + 1) where n = 0, 1, 2.
1994/8 = 249, remainder = 2.
ie => (8 * 249 + 1) = 1993 which represents thump.
Therefore, 1994 represents index finger.
Index finger 2.
Middle finger 3.
Ring finger 4.
Little finger 5.
Ring finger 6.
Middle finger 7.
Index finger 8.
Thump 9.
Index finger 10.
So on.
Sequence of numbers with thumb are 1, 9, 17, ....
This series can be represented by (8n + 1) where n = 0, 1, 2.
1994/8 = 249, remainder = 2.
ie => (8 * 249 + 1) = 1993 which represents thump.
Therefore, 1994 represents index finger.
Owens said:
10 years ago
I agree. It should be middle finger. 1992 is thumb then plus 2 remainder. Therefore, 1992 + 1 = 1993 (index) then 1993 + 1 = 1994 which points to middle finger.
Ahmer said:
10 years ago
249*8=1992 it appears on thumb and 1993 comes on index and 1994 on middle finger.
So answer in middle finger if apply 8n+2=(8*249+2)=1994.
So answer in middle finger if apply 8n+2=(8*249+2)=1994.
Mohanraj said:
10 years ago
They wrote 8n+2.
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