A thief is capable of running 20kms a day. A policeman who is to catch the thief can run 1km on the 1st day, 2kms on the 2nd day and so on. Then how long will it take the policeman to catch the thief?

moveon

 Profile Answers by moveon Questions by moveon

• Nov 5th, 2009

A thief can run 20 kms a day.Let thief be catched in x daysso total km is 20*xkm run by policeman 1+2+3+4.........+x is an A.P is x(x+1)/2equating both20*x=x(x+1)/2x=39

navateja

 Profile Answers by navateja Questions by navateja

• Jul 25th, 2009

Let the no. of days needed is x.In x days, the theif runs 20x kms.On day 1, police runs 1km.On day 2, he runs 2 kms.Similarly, on the xth day, he runs x kms.In the entire x days, police runs (1+2+3+.....

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3 policemen and 3 thieves had to cross a river using a small boat. Only two can use the boat for a trip. All the 3 policemen and only 1 thief knew to ride the boat. If 2 thiefs and 1 policeman were left behind they would kill him. But none of them escaped from the policemen. How would they be able to cross the river?

JOBI JOSEPH

• Jul 29th, 2017

Cant do the answer because if only one person (thief) can drive the boat then if he drops either one thief or police the other end then he doesnt have to come back to pick others and escape.

Tommie

• Sep 29th, 2016

2 police in the boat, 1 police and 3 robbers hold onto the side

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A man bought some horses, cows and goats. They were 100 in number(totally). If it costed Rs.100 to buy those 100 animals and the cost of a horse, a cow and a goat was Rs.10,Rs.3, 50 paise respectively,how much horses goats and cows did he buy?

Kartik Kandiwalsa

• Jul 30th, 2017

X be horses, y be cows, z be goats
According to given condition
x+y+z=100
10*x+3*y+0.5*z=100
Subtracting eqn 1 from eqn 2
19*x+5*y=100
Only possible integers values are x=5 and y=1
Hence z=94
So 5 horses 1 cow and 94 goats

shiva

• Apr 27th, 2017

4 Rs. 1 Book
25 p. 1 Pencil
50 p. 1 Pen

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A thief is capable of running 20kms a day. A policeman who is to catch the thief can run 4 1km on the 1st day, 2kms on the 2nd day and so on. Then on which day will the policeman catch the thief.

iten

• Feb 19th, 2015

The first day

manny

• Dec 16th, 2014

39 days

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Once there came many birds to a pond. There were certain number of lotus flowers in the pond. If each bird occupied one lotus one bird was left alone without any flower. If two birds sat in a flower one flower was left behind. Find the total number of birds and flowers.

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nitishdastane  

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• Member Since Mar-2009 | Mar 9th, 2009

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Ans:=4 birds? &?3 flowers

If 1 bird sat on one lotus 1 bird left behind & if 2 bird sit on 1 lotus then 1 lotus left behind.

kavipriya duraikannu

 Profile Answers by kavipriya duraikannu Questions by kavipriya duraikannu

• Jan 10th, 2011

3 flowers and 7 birds

smitrudra

 Profile Answers by smitrudra Questions by smitrudra

• Sep 10th, 2010

The number of bird is 4 and flowers 3.x-y=1  & x/2=y+1 ;  where x = birds and y = flowers

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