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ER. Karthiga Profile page        View Public Wall My Profile Page

S K aahok    7 years ago
Free walkin drive for any graduates in erode for hospitality management.Call 97915 02467 .forward to your groups in college.will be usefull for someone
Reply Like? Yes | No   
swapnila    7 years ago
Find the Odd man out
2,3,4,15,64,285,1704
Options-
A)15
B)64
C)285
D)4
Reply Like? Yes (8) | No (1)  
S K aahok   7 years ago
Free walkin drive for any graduates in erode for hospitality management.Call 97915 02467 .forward to your groups in college.will be usefull for someone
Like? Yes | No   
Kavya Maalika   7 years ago
answer-B I think
Like? Yes | No   
karthiga    10 years ago
George is two-third as efficient as Smith and Smith is three-fourth as efficient as John. In one day, what will be the fraction of the work done by George alone, compared to all of them working together?
a. 2/3 b. 2/9 c. 4/9 d. 1/3
Reply Like? Yes (1) | No   
aman   10 years ago
Ans is d ) 1/3
Let efficiency of john be x then smith efficiency will be 3x/4and so george will be x/2
Total efficiency = 3x/2
George/total = 1/3
Ans 1/3
Like? Yes (1) | No (1)  
abhi   10 years ago
answer id b). 2/9
Like? Yes (1) | No   
Kavya Maalika   7 years ago
It's 2/9
G=1/2
S=3/4
J=1
part of G work is :
G=(1/2)/(1/2+3/4+1) =(1/2)/(9/4) = 2/9
Like? Yes | No   
karthiga    10 years ago
A rectangle of height 100 squares and width 200 squares is drawn on a graph paper. It is colored square by square from top left corner and moving across in a spiral turning right whenever a side of the rectangle or a colored square is reached. Which square is colored last (give its row and column numbers – the bottom right square is on row 100 and column 200)
a. 51, 150 b. 51, 50 c. 50, 150 d. 50, 50
Reply Like? Yes | No   
karthiga    10 years ago
From a box containing 3 white chips, 7 blue chips and 15 green chips, 2 chips are drawn at random. What is the probability that one is of the chips is blue and the other is white?
a. 7/625 b. 7/50 c. 7/100 d. 21/625
Reply Like? Yes | No   
PAWAN KUMAR   10 years ago
no of ways to select a whiteball out of 3 whiteballs = 3
no of ways to select a blueball out of 7 blueballs = 7
no of ways to select 2 balls out of (15+7+3) i.e, 25 balls = 25c2 = 25*24/2 = 300

therefore, total no of ways = 3*7/300 = 7/100 Ans.
Like? Yes | No   
karthiga    10 years ago
Three cars, A, B and C are participating in a race. A is twice as likely as B to win and B is thrice as likely as C to win. What is the probability that B will win, if only one of them can win the race?
a. 1/2 b. 2/5 c. 3/10 d. 1/10
Reply Like? Yes | No   
PAWAN KUMAR   10 years ago
let the chances of winning C be x.
then, chances of winning B = 3x
chances of winning A = 2*3x = 6x
probability of winning of B = 3x/(6x+3x+x) = 3/10 Ans.
Like? Yes | No   
karthiga    10 years ago
How many prime numbers are there which are less than 100 and greater than 3 such that they are simultaneously of the following forms. 4x + 1 5y – 1
a. 11 b. 12 c. 7 d. None of the above
Reply Like? Yes (10) | No   
karthiga    10 years ago
For a real number x, int(x) denotes the integral part of x, that is int(x) id the largest integer less than or equal to x. Thus int (1.2) = 1 and int (-2.4) = -3. The value of int(1/2)+int(1/2+1/100)+int(1/2+2/100)……. Int(1/2+99/100) is
a. 50 b. 49 c. 51 d. 48
Reply Like? Yes | No   
karthiga    10 years ago
Raj invested in Indigo, HUL and SBI shares at Rs.300, Rs.200 and Rs.5 per share respectively and purchased a total of 100 shares for Rs.10000. the number of Indigo and HUL shares he brought are
a. 15. 25 b. 23, 17 c. 17, 23 d. 17, 60
Reply Like? Yes | No   
karthiga    10 years ago
10 years ago, the average age of 10 people was 33 years. After 3 years, a person of age 40 died. After another 3 years, another person of age 40 died. After another 3 years, another person of age 30 dies. Find the present average age.
a. 43 b. 44 c. 35 d. 40
Reply Like? Yes (1) | No   
aman   10 years ago
Option b is the ans
After 9yr his avg will be 43 so the present avg age that is 10yr will be 44
Like? Yes (1) | No   
karthiga    10 years ago
Each of A, B and C need a certain unique time to do certain work. C needs 1 hour less than A to complete the work. Working together they require 30 minutes to complete 50% of the work. The work also gets completed if A and B start working together and A leaves after 1 hour and B works further 3 hours. How much work does C do per hour?
a. 16.66% b. 66.66% c. 50% d. 33.33%

For any two numbers, we define an operation $ yielding another number X $ Y such that following condition holds: X $ X = 0
Also for all X, X $ (Y $ Z) = X $ Y + Z Find the value of 2012 $ 0 + 2012 $ 1912
a. 2112 b. 100 c. 5936 d. Cannot be determined

bag contains six sticks of the following lengths 1 cm, 3 cm, 5 cm, 7 cm, 11 cm and 13 cm. Three sticks are drawn at ransom from the bag. What is the probability that we can form a triangle with those sticks?
a. 11/20 b. 1 c. 1/4 d. 2/5
Reply Like? Yes | No   
karthiga    10 years ago
A sequence X1, X2 and X3 is said to be in harmonic progression if the reciprocals 1/x1, 1/x2 and 1/x3 are in arithmetic progression. The 5th term and the 7th term for an harmonic progression are 30 and 50 respectively. What is the difference between the 6th and 4th term?
a. 16 b. 14.5 c. 13.4 d. 12.5
Reply Like? Yes | No   
karthiga    10 years ago
Find 13x + 13y
8 1 7 8
x 6 7 8
9 2 3 1 6
4 7 5 6
7 9 y 1 2
6 3 4 9
4 9 2 1 6
6 5 4
7 8 5 9
a. 117 b. 169 c. 91 d. 130
(it is in 9*9 table)
Reply Like? Yes (1) | No   
sahitya   10 years ago
117 is answ. bcoz x=3 and y=6....
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karthiga    10 years ago
The letter of the alphabet are numbers from 1 to 26 consecutively with 1 assigned to A and 26 assigned to Z. By 27th letter we mean a, 28th we mean B etc. In general 26m+n where m, n are positive integers is same as the letter numbered n.
Let p = 6 The storage county military General sends his secret messages according to the following codification scheme. In codifying a sentence, the first time a letter occurs it is replaced by the Pth letter from it, second time it occurs it is replaced by p^3rd letter from it, third time it occurs, it is replaced by p^3rd letter from it etc.
What is the code word for ABBATIAL?
a. GHMNZOOR b. GHKJZOHR c. GHHGZOGR d. GHLKZOIR
Reply Like? Yes | No   
karthiga    10 years ago
For which of the following n is the number 274 + 22058 +22n a perfect square?
a. 2010 b. 2011 c. 2012 d. 2100
Reply Like? Yes | No   
karthiga    10 years ago
There is a set of 9 numbers that relate to each other in a certain way. Find the way the first set of boxes works. The numbers in the second set work in exactly the same way. Find the number that must
a. 16 b. 9 c. 12 d. -21
Reply Like? Yes | No   
karthiga    10 years ago
what is the solution?
George and mark work for a company. George can finish a certain job in 30 days. Mark can finish the same job inn 45 days. A project was taken by the company and George was made superior to Mark. This move from the company was not liked by Mark. So Mark did not work for 15 days. Find the total number of days the entire work was completed if Mark works at his normal speed after 15 days from the date of commencement?
a. 15 b. 20 c. 35 d. 24
Reply Like? Yes | No   
karthiga    10 years ago
what is the solution for this question??
10 people are there, they are shaking hands together, how many hand shakes are possible, if they are in no pair of cyclic sequence
a. 45 b. 9 c. 12 d. 10
Reply Like? Yes | No   
Gitanjali K   10 years ago
1st person shakes hand with other 9 =9 handshakes
.
.
so finally 9th person=1 hanshake and 10th person=0 handshake
so total=9+8+7+6+5+4+3+2+1=45 handshakes

so option
Like? Yes | No   
karthiga    10 years ago
what is the answer?
From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?
a. a(sqrt2)+8 b. 8(sqrt2)-8 c. 2(sqrt2)+8 d. 8(sqrt2)+4
Reply Like? Yes (58) | No (3)  
malini devi   10 years ago
what is the answer?
From a square of side 2 cm, equal triangles are cut from its corners to form a regular octagon. We will get an octagon. What is the area of that octagon?
a. a(sqrt2)+8 b. 8(sqrt2)-8 c. 2(sqrt2)+8 d. 8(sqrt2)+4

Read more at http://www.m4maths.com/post-12060-what-is-the-answer-From-a-square-of-side-2-cm-equal-triangles-are-cut-from-its-corners-to-form.html#o1b8x36UWllRevix.99
Like? Yes (2) | No (2)  
saravanan   9 years ago
Let x= side of the regular octagon. By symmetry, each figure cut from the corners must be an isosceles right(45-45-90) triangle,
and all four of them must be congruent. Then the leg of each isosceles triangle must have measure x/sqrt(2)
Then we must have x/sqrt(2)+x+x/sqrt(2)=2 or simplification,
x=2/(1+sqrt(2)) this is one side of octagon.
Area of octagon = 2(1+sqrt(2)) a^2, where a is side of octagon,
area of octagon = 2(1+1.414)(2/(1+sqrt(2)))^2 =3.31 cm^2
Like? Yes (2) | No (4)  
karthiga    10 years ago
what is the solution for this question?
In this question A^B means A raised to the power B. If f(x)=ax^4=bx^2+x=5
F(-3)=2
Then f(3)=?
a. 3 b. -2 c. 8 d. 1
Reply Like? Yes | No   
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Karthiga (F)
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M4 Score
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Karthiga (F)
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