Number System - Questions & Discussions

Should be 1 ... Please confirm right answer...

i have 7^7sweets and i want to distribute them equally among 2^4students.after each of the student got maximum integral sweets how many sweets are left with me ?
a)8
b)5
C)1
d)none

i have 7^7sweets and i want to distribute them equally among 2^4students.after each of the student got maximum integral sweets how many sweets are left with me ?
a)8
b)5
C)1
d)none


none?? i think 7 should be the remainder
i have 7^7sweets and i want to distribute them equally among 2^4students.after each of the student got maximum integral sweets how many sweets are left with me ?
a)8
b)5
C)1
d)none

it should be 7...??
i have 7^7sweets and i want to distribute them equally among 2^4students.after each of the student got maximum integral sweets how many sweets are left with me ?
a)8
b)5
C)1
d)none


the answer will be the remainder of 7^7/2^4 = 7
so option d

it should be none as 7^7/16 :7 and 16 are coprime so 7^6/16 will give remainder as 1 so we r left with 7/16 which wull give remainder 7 ..

when i distribute a packet of chocolates to 7 students .i am left with 4 chocolates .when i distribute the same packet of chocolates to 11 students .i am left with 6 chocolate .how many chocolates will be left with me if i distribute the same packet of chocolate among 13 student .(a packet of chocolates contains total number of chocolates N,1000a)2
b)0
c)6
d)7

when i distribute a packet of chocolates to 7 students .i am left with 4 chocolates .when i distribute the same packet of chocolates to 11 students .i am left with 6 chocolate .how many chocolates will be left with me if i distribute the same packet of chocolate among 13 student .(a packet of chocolates contains total number of chocolates N,1000a)2
b)0
c)6
d)7

It is Option B
when i distribute a packet of chocolates to 7 students .i am left with 4 chocolates .when i distribute the same packet of chocolates to 11 students .i am left with 6 chocolate .how many chocolates will be left with me if i distribute the same packet of chocolate among 13 student .(a packet of chocolates contains total number of chocolates N,1000a)2
b)0
c)6
d)7


the equations are
7x+4 = 11y+6
so we get the least number of chocolates to be 39
39 is divisible by 13
so total choclates are 77z+39
here z = 13
so 1040 which is perfectly divisible by 13.
so 0

1. Find the remainder when 25^102 is divided by 17?
2. Find the remainder when 83^261 is divided by 17?
3. Find the remainder when 54^214 is divided by 17?

Can anyone explain me the concept to solve such questions....

1. Find the remainder when 25^102 is divided by 17?
2. Find the remainder when 83^261 is divided by 17?
3. Find the remainder when 54^214 is divided by 17?

Can anyone explain me the concept to solve such questions....

http://www.pagalguy.com/discussions/number-system-questions-discussions-25043728
http://www.pagalguy.com/discussions/official-quant-thread-for-cat-2011-part-2-25067094
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go by this..
1. Find the remainder when 25^102 is divided by 17?
2. Find the remainder when 83^261 is divided by 17?
3. Find the remainder when 54^214 is divided by 17?

Can anyone explain me the concept to solve such questions....

1. 4
2.2
3.15

logic
: since 17 is a prime number so A^16/17 =1
:)

where from 77z came from...

Hey Puys i am putting up 3 questions!!

How many ways can 225 be written as difference of two perfect squares?

A-1 B-3 C-4 D-5

find highest power of 12 in 142! +143!

options :-67,68,69,70

find remainder when 25! is divided by 5^7

Options:- 6x5^5, 50000, 25x5^4, 1

Hey Puys i am putting up 3 questions!!

How many ways can 225 be written as difference of two perfect squares?

A-1 B-3 C-4 D-5

find highest power of 12 in 142! +143!

options :-67,68,69,70

find remainder when 25! is divided by 5^7

Options:- 6x5^5, 50000, 25x5^4, 1


2)142!*143+142!
142!(144)
in 142! the power is 68..
in 144 its 2
ans =70
whats the oa?

1)1 way...not sure
hey puys i am putting up 3 questions!!

how many ways can 225 be written as difference of two perfect squares?

A-1 b-3 c-4 d-5

find highest power of 12 in 142! +143!

Options :-67,68,69,70

find remainder when 25! Is divided by 5^7

options:- 6x5^5, 50000, 25x5^4, 1


1.3 113^2-112^2,,,,,25^2-20^2......15^2-0^2
2.70
3.i think it should be 4

For first i think answer is 2 .i can figure out 2nd number also 113^2-112^2=225

SRY FR THIRD CONSECUTIVE REPLY BUT ANSWER IS 3 15^2-0^2=225 ,,:p

rohit406 Says
SRY FR THIRD CONSECUTIVE REPLY BUT ANSWER IS 3 15^2-0^2=225 ,,:p



Answer is 4 .....even i dont know 4th one!!! can u explain your approach for this question? bcz i found 3 but it took longer time than u.........
1.3 113^2-112^2,,,,,25^2-20^2......15^2-0^2
2.70
3.i think it should be 4




3rd question's anwer is wrong.....!!! answer is 25x5^4