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 1 of 5.
Niru said:
2 years ago
I agree, index finger is the right answer.
Subbu said:
3 years ago
10 is not the index finger because we start our counting from the thumb.
So the answer is the ring finger.
So the answer is the ring finger.
(5)
SUPI said:
4 years ago
Your counting pattern is very incomprehensible, after 9, the next figure on the thumb is 14.
How did you get 17? Please explain me.
How did you get 17? Please explain me.
Debjit said:
5 years ago
Series for thumb 1, 9, 17, 25, 33.
i.e general term is 8n+1.
1994 divided by 8 gives remainder 2.
So the answer should be INDEX FINGER.
i.e general term is 8n+1.
1994 divided by 8 gives remainder 2.
So the answer should be INDEX FINGER.
(2)
Raelas said:
5 years ago
@Arohi,
You reverse the direction when counting, 10 lands on the index finger and 15 lands on the middle finger.
You reverse the direction when counting, 10 lands on the index finger and 15 lands on the middle finger.
(1)
Arohi said:
6 years ago
5,10,15.......comes on the little finger.
I.e 5n is on the little finger.
Again 5*399 = 1995 is on the little finger. So obviously 1994 will come on the ring finger.
I.e 5n is on the little finger.
Again 5*399 = 1995 is on the little finger. So obviously 1994 will come on the ring finger.
(1)
Nivedita said:
7 years ago
Answer: INDEX FINGER.
Series of numbers on thumb finger:
1,9,17,25..... i.e) (8*0+1), (8*1+1), (8*2+1).......(8*n+1).
Number close to 1994(given in question) that is divisible by 8 is 1992.
i.e) 1992/8 = 249..reminder 0...from this statement it can be written as 8*n, i.e) 8*249=1992.
Now,
1993/8 gives a reminder of 1, from this statement it can be written in the form of 8*n+1 as (8*249+1). So it comes on thumbs.
And the next number, 1994 comes on index finger.
Series of numbers on thumb finger:
1,9,17,25..... i.e) (8*0+1), (8*1+1), (8*2+1).......(8*n+1).
Number close to 1994(given in question) that is divisible by 8 is 1992.
i.e) 1992/8 = 249..reminder 0...from this statement it can be written as 8*n, i.e) 8*249=1992.
Now,
1993/8 gives a reminder of 1, from this statement it can be written in the form of 8*n+1 as (8*249+1). So it comes on thumbs.
And the next number, 1994 comes on index finger.
(2)
Swapnil Bombe said:
7 years ago
Thumb comes 1,9,17... i.e., after each 8th count.
But for first time we start count from thumb and for remaining all we start count from index finger.
So due to 8th count count we take as 8n.
And for first time we start count from thumb and for remaining all we start from index finger, so we add 1 to it.
Then expression becomes 8n+1.
But for first time we start count from thumb and for remaining all we start count from index finger.
So due to 8th count count we take as 8n.
And for first time we start count from thumb and for remaining all we start from index finger, so we add 1 to it.
Then expression becomes 8n+1.
Kinjal Jain said:
7 years ago
How come 8 hete?
Sharmila said:
8 years ago
1994 is divisible by only 2. And hence the index finger.
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