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(#M40012597) TCS question Keep an EYE

a farmer has a rose garden. everyday he either plucks 7 or 6 or 24 or 23 roses. now, when farmer plucks these no. of roses , the next day 37 or 36 or 9 or 18 new roses bloom. on monday he counts 189 roses.he plucks the roses as per his plan for consecutive days and new roses bloom next day as said earlier. after some of the days which of the following can be the no. of roses in the garden? plz xplain it with clearly. its difficult to understand this ques.
a) 4
b) 37
c) 7
d) 30

Asked In TCS Divya Malhotra (12 years ago)

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Tanmay Singh  (12 years ago)

ans-4
roses are decreasing so only pair we can use are 24,9 or 23,18
24-9=15 , 189mod15=9 (that's not a option)
23-18=5 , 189mod5=4 ans.

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Nalla Vinay Kumar  (12 years ago)

As given, on monday 189 roses are present.
7 or 6 or 24 or 23 are plucked on consecutive days and 37 or 36 or 9 or 18 roses are newly bloomed.
let for 'x' days roses are plucked then x-1 days roses are bloomed.
finally roses left are 189-24(x)+9(x-1)=180-15x = 30(for x=10)

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charul pilania  (12 years ago)

I have aptitude test tommorow morning i would realy appriciate if you can send me the questions on pilaniacharul@gmail.com

thanks in advance !
best
charul

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dragon  (12 years ago)

i cannot understand plz explain it

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Alok Jain  (12 years ago)

ques is not clear...

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umarali18shaik@gmail.com  (12 years ago)

sorry initial answer was not correct.
only two of the options taken 24-9 23-9 because in answ9ers flowers are less.
if 23 taken 189-23=166 if add 18 then 184 then 184-23 then add 18=174 if we obserb unit place when pluck 23 and add always it was 4... so finally we have 4 flowers

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umarali18shaik@gmail.com  (12 years ago)

37 is the answer, assume that initially there are 7 flowers in the garden. then next day the garden will have 37 flowers

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Sahara  (11 years ago)

hey suppose if the options wer something like 26 249 232 24 wat wud be the ryt option ?????

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Nalla Vinay Kumar  (11 years ago)

if the optins are 26,24,249,232 then the answer can be 249....
it is like 189-24x+36(x-1)=153+12x=249 for x=8

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Raunak MAnchanda  (11 years ago)

Somebody please explain this answer clearly

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akshat sinha  (9 years ago)

Little bit tricky,
CASE I
If he plucks 24 flowers and 9 comes:- In this case flowers decreases day by day as 1st day there is a loss of 15 flowers and then next day again there is a loss of 15 flowers and it is go on until we reach flower

CASE II
If he plucks 23 flowers and 18 comes:- In this case also flowers decreases day by day and never reach upto 189.

CASE III
If he plucks 7 flower and 37 comes:- Now, there is a gain in flowers each day
CASE IV
Here also there is a gain in each day

So as per option if there is 189 flowers on Monday and there maybe either 4 or 37 or 7 or 30 flowes left then definitely there is a loss in flower in each day and therefore, ans was demonstrated by either CASE 1 or CASE 2

Solving CASE 1,
There is a loss of 15 flowers each day.
After 12 days he lose 180 flowers and only 9 left.

Solving CASE 2, there is a loss of 5 flowers each day.
After 37 day, he lose 185 flowers and only 4 left
9 is not in option so answer is 4

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