Ques:- Find out the wrong number in the series:
64, 71, 80, 91, 104, 119, 135, 155
A. 71
B. 80
C. 104
D. 135
Recent Answer : Added by Anjun On 2022-08-24 17:03:38:
135 is wrong because from starting difference between 7 after that 9 after 11 ,13,17 and so on
Ques:- When x is real what is the least value of (x**2-6*x+5)/(x**2+2*x+1)
Recent Answer : Added by Admin On 2020-05-17 12:01:23:
(x**2 – 6* x + 5) = (x-1)*(x-5)
(x**2 + 2 * x + 1) = (x + 1) * (x+1) = (x+1)**2
For what x is (x-1)*(x-5)/( (x+1)**2) a minimum?
One way to answer this question is by using calculus.
Take the derivative, and set to zero.
Since this is a fraction of polynomials, and a fraction is
zero only if it’s numerator is zero, we need calculate only
the numerator of the derivative and set it to zero.
The numerator of the
Derivative of (x-1)*(x-5)/( (x+1)**2) is
( (x-1) + (x-5) ) ( x+1)**2 – (x-1)(x-5)( 2 (x+1) )
= (2 x – 6) (x+1)**2 – (2) (x-1)(x-5) (x+1)
= 0
Divide through by 2 (x+1)
(x-3)(x+1) – (x-1)(x-5) = 0
(x**2 – 2 x – 3 ) – (x**2 – 6 x + 5) = 0
x**2 – x**2 – 2 x + 6 x – 3 – 5 = 0
4 x – 8 = 0
x = 2
Plugging in x = 2 into the original
(x**2-6*x+5)/(x**2+2*x+1)
gives us (2**2 – 6 * 2 + 5)/(2**2 + 2*2 + 1)
= (4 – 12 + 5) / (4 + 4 + 1) = -3/9 = -1/3
Least value is -1/3
Ques:- You are given 8 identical balls …. but one of them is slightly heavier than the rest…. given a old scale (not electronic one) and only two trials to weigh … can u spot the odd one out????
Ques:- 97 : 89 :: 43 : __
Ques:- Why were you fired from last organisation?
Ques:- Why are you so interested in this company?
Ques:- Why do you want to travel to the USA?
Ques:- 10,9,60,90,70,66,?
Recent Answer : Added by Babuji On 2020-09-29 04:17:01:
ans 810 i think
Ques:- In what ratio should a variety of rice costing Rs. 6 per kg be mixed with another variety of rice costing Rs. 8.75 per kg to obtain a mixture costing Rs. 7.50 per kg?
Ques:- 3 cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?
Recent Answer : Added by Anna On 2021-10-22 09:13:17:
let a = 9 * 9 * 9;
let b = 12 * 12 * 12;
let c = 15 * 15 * 15;
sum = a + b + c;
edge = Math.cbrt(sum);
console.log(edge);
Ques:- A cube of side 4cm is painted with colors red,blue,green in such a way that opposite sides are painted in the same colour . this cube is now cut into 64 cubes of equal size .then 1) how many have atleast two sides painted in different colours.
Ques:- How often between 11 o’clock and 12 o’clock are the hands of a clock in integral number of minutes apart?
A. 54 times
B. 55 times
C. 56 times
D. 58 times
Recent Answer : Added by Laddagiri Naveen On 2022-03-09 16:34:59:
C
Ques:- 38649 – 1624 – 4483 = ?
A. 32425
B. 32452
C. 34522
D. 32542
Recent Answer : Added by narendra On 2022-09-18 09:02:21:
d
Ques:- A man was engaged on a job for 30 days on the condition that he would get a wage of Rs. 10 for the day he works, but he have to pay a fine of Rs. 2 for each day of his absence. If he gets Rs. 216 at the end, he was absent for work for … days.
Recent Answer : Added by Qhizer On 2021-08-11 07:22:47:
30 days of earning =300 rs
No of days he was absent = x
Equating the abv
300 – 10 x – 2 x = 216
After solving for x you will get 7days
Ques:- The HCF and LCM of two numbers are 18 and 3780 respectively. If one of them is 540, then the second one is
A. 112
B. 118
C. 126
D. 142
Recent Answer : Added by anonymous On 2022-03-09 16:38:06:
126
cos if one of the factor is given for hcf and lcm and multiply hcf and lcm and them divide it by the given factor
so 18*3780/540=18*7=126
Ques:- LAST COMPANY
Ques:- If the operation,^ is defined by the equation x ^ y = 2x + y,what is the value of a in 2 ^ a = a ^ 3
Recent Answer : Added by Ananya Jignyasha On 2021-07-14 14:29:35:
2^a = 2 x 2+a
a^3= 2 x a + 3
=> 4+a= 2a + 3
=> a = 1
Ques:- Number Series 8,9,11,14,,18,23,?
Recent Answer : Added by Admin On 2020-05-17 11:59:54:
8+1=9
9+2=11
11+3=14
14+4=18
18+5=23
and finally
23+6=29
Ques:- A school is going to have 1000 students in near future. 1/4th use scooter, 1/5th use bikes and 1/9th use cycle. Find the number of students at present.
Recent Answer : Added by Pijus Ghosh On 2021-12-17 16:08:32:
562.
Ques:- a+b+c=13 c+d+e=13 e+f+g=13 g+h+i=13 find the value of e.
Ques:- How do you manage your time in a project when the project has a tight deadline? Give an example to prove your point.
Ques:- TELL ABOUT YOUSELF?
Ques:- Why are you not interested in government job?
Ques:- A is thrice as good as workman as B and therefore is able to finish a job in 60 days less than B. Working together, they can do it in?
Ques:- Sum of two numbers is 15. Two times of the first exceeds by 5 from the three times of the other. Then the numbers will be?
Recent Answer : Added by Joseph Owusu On 2022-03-11 17:00:39:
The first number is 10 and the second number is 5
Ques:- Who made an impact with the New Look after establishinga Paris salon in 1947?
A. Christian Dior
B. Coco Chanel
C. Elsa Schiaparelli
D. Hubert de Givenchy
Recent Answer : Added by H Chris Sparks On 2022-04-02 06:57:48:
A. Christian Dior
Ques:- If + means * and * means / and / means %. what is the value of 2+3*5/7?
Recent Answer : Added by Admin On 2020-05-17 12:03:17:
wake up guys and see modulo % can return only integer value.
So answer will be 1 and all other answers are wrong. You can
run your equation in C code and check the output.
Ques:- Why do you want to leave the company?
Ques:- If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists r required to make 25 paintings using 25 canvases in 25 days?
Ques:- The sum of the squares of two consecutive positive integers exceeds their product by 91. Evaluate the integers?
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135 is wrong because from starting difference between 7 after that 9 after 11 ,13,17 and so on