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(#M40040464) OTHER QUESTION very last digit of 4 Keep an EYE

In a big hostel, there are 1000 rooms. In that hostel, only even numbers are used for room numbers, i.e. the room numbers are 2, 4, 6, ..., 1998, 2000. All the rooms have one resident each. One fine morning, the warden calls all the residents and tells them to go back to their rooms as well as multiples of their room numbers. When a guy visits a room and finds the door open, he closes it, and if the door is closed, he opens it. All 1000 guys do this operation. All the doors were open initially. What is the last door that is closed (room number of that door)?

Asked In other Harsh Poddar (11 years ago)

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(#M40039616) OTHER QUESTION solve Keep an EYE

find the next term
1,4,18,96,600,

Asked In other Harsh Poddar (11 years ago)

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(#M40040286) OTHER QUESTION cocassi function algebra 3 Keep an EYE

a,b,c are positive real numbers
a(b+c)=32
b(c+a)=65
c(a+b)=77
find abc

Asked In other Harsh Poddar (11 years ago)

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(#M40021720) BOOK QUESTION Equation Keep an EYE

A and B together can do a work in 72 minutes. But B takes 1 hour more than A takes to do the same work, when each works alone. Find the time taken by A and B each working alone to do the same work.

Asked In Book Harsh Poddar (12 years ago)

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(#M40039636) OTHER QUESTION solve Keep an EYE

what is the remainder when 1^7+2^7+3^7+4^7+..............+100^7 divided by 4

Asked In other Harsh Poddar (11 years ago)

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(#M40039694) MATHS OLYMPIAD QUESTION solve Keep an EYE

the remainder when 52*81*90 is divided by 7 is

Asked In Maths Olympiad Harsh Poddar (11 years ago)

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(#M40040302) OTHER QUESTION easy and busy Keep an EYE

in a list of numbers, each number after the first is exactly one third the number immediately preceding it.if the seventh number in the list is 2,what is the 4th number in the list?

Asked In other Harsh Poddar (11 years ago)

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(#M40033589) MATHS OLYMPIAD QUESTION solve Keep an EYE

how many positive perfect square less than 10^6 are multiples of 24

Asked In Maths Olympiad Harsh Poddar (11 years ago)

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(#M40041050) BOOK QUESTION solve Keep an EYE

next number of series 2,4,8,61,23,46,821,

Asked In Book Harsh Poddar (11 years ago)

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(#M40039682) MATHS OLYMPIAD QUESTION solve Keep an EYE

if the number of different cards of different colours thomas has are in AP. If he has cards of 7 different colours in order of VIBGYOR such that the third colour is for times the fist colour and the sixth colour is 17 then find the number of fifth colour cards

Asked In Maths Olympiad Harsh Poddar (11 years ago)

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