@shanu18 said:What is the unit digit in {(6374)1793 x (625)317 x (341491)} ??
0?
@gautam22 said:calculate the smallest value of n for 2n^3+12n^2+4n+17 is divisible by 84?
bhai is this question correct??
because all the values of n will give an odd number which can never be divisible by 84??
:|
A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??
1)39%
2)11%
3)7%
4)14 %
@gautam22 said:bas yahi to ans hai....khud banata rahta hoon aise hi baitha baitha sir
aisa mat karo....aur agar karte ho toh option de diya karo...janta ka bhala ho jaayega...
:)
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??
1)39%
2)11%
3)7%
4)14 %
3. 7%?
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??1)39% 2)11%3)7%4)14 %
a+b+c=97
b=25
a+2b+3c=136
==> b+2c=39
==> c=7
b=25
a+2b+3c=136
==> b+2c=39
==> c=7
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??1)39% 2)11%3)7%4)14 %
7%?
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??1)39% 2)11%3)7%4)14 %
7%?
@gautam22 said:koi gumrah nahi hua sir fat se @pari19O1 sir ne ans de diya
maine answer nhi diya but question poocha tha..
:sneaky:
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??1)39% 2)11%3)7%4)14 %
7%
!!!@gautam22 said:calculate the smallest value of n for 2n^3+12n^2+4n+17 is divisible by 84?
84=4*3*7
2n^3+2n^2+4n+17
n=4k,4k+1,4k+2 2n^3+2n^2+4n+17 not divisible
n=4k+3 it is divisible
n=3k,3k+1,3k+2 2n^3+2n^2+4n+17 not divisible
If it is not divisible by anyone of 4 ,3 or 7,it is not divisible by 84
@shanu18 said:A survey shows that 61%,46%, and 29 % of the people watched X, Y ,Z movies respectively. 25% people watch exactly two of the three movies and 3 % watched none. what percentage of people watched all the three movies ??1)39% 2)11%3)7%4)14 %
a+b+c+2(d+e+f)+3g=136
a+b+c+d+e+f+g=97
d+e+f+2g=39
25+2g+39
g=7
@shanu18 said:A can finish a work in 24 days, B in 9 days and C in 12 days. B and C start the work but are forced to leave after 3 days. The remaining work was done by A in ??
72 units of work
A efficiency is 3 units per day
B efficiency is 8 units per day
C efficiency is 6 units per day
3*(14)=52 units
30 remaining work
30/3 =10 days
@gnehagarg said:72 units of workA efficiency is 3 units per dayB efficiency is 8 units per dayC efficiency is 2 units per day3*(13)=39 units33 remaining work33/3 =11 days
ans is 10 ma'am..
72 units of work
A efficiency is 72/24=3 units per day
B efficiency is 72/9=8 units per day
C efficiency is 72/12=6 units per day
(6+8)*3=14*3=42
72-42=30
30/3=10 days
A efficiency is 72/24=3 units per day
B efficiency is 72/9=8 units per day
C efficiency is 72/12=6 units per day
(6+8)*3=14*3=42
72-42=30
30/3=10 days
a teacher asked a student to add nine 2-digit no. such that each no. is 10 more than the previous no. but the student has added all the no.,which are formed by interchanging the digits of each of the given no.surprisingly,the sum he got was the same as the sum the teacher has asked for.which of the following is the difference of the digits in the least of the no. the student was asked to add?
a) 2
b) 3
c)4
d) 5
a) 2
b) 3
c)4
d) 5
there are 7 children standing in the line,not all of whom have the same number of cakes with them.if the first child distributes his cakes to the remaining 6 children such that he doubles their respective no. of cakes,then he will be left with four cakes.instead,if the 2 child takes away 2 cakes from each of the remaining 6 children,then he will be left with 2 cakes less than the no. of cakes that the first child initially had.what is the total no. of cakes that are there with the third child to the seventh child?
11
14
12
15
11
14
12
15