Ques:- If 3 workers collect 48 kg of cotton in 4 days, how many kg of cotton will 9 workers collect in 2 days?
Recent Answer : Added by Yadu Krishnan S On 2022-08-14 16:42:43:
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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:- Can you explain why should we select you fromthe number of applications we have received?
Ques:- How would you bring in Improvements to the Business?
Ques:- Sides of a rectangular park are in the ratio 3: 2 and its area is 3750 sq m, the cost of fencing it at 50 ps per meter is?
Recent Answer : Added by admin On 2022-08-14 16:46:38:
1875
Ques:- If the HCF of two numbers is 2 and their LCM is 70, then the numbers are
A. 2, 35
B. 4, 70
C. 6, 70
D. 14, 10
Recent Answer : Added by Cynthia Birungi Muhumuza On 2022-08-14 16:34:42:
d
HCF= 2
LCM = 2*5*7 = 70
Ques:- A,B,C,D,E and F are a group of friends. There are two house wives, one professor , one engineer, one accountant and one lawyer in the group.There are only two married couples in the group. The lawyer is married to D, who is a housewife. No women in the group is either an engineer or an accountant. C, the accountant, is married to F, who is a professor. A is married to housewife. E is not a housewife. How many members of the group are males?
Ques:- How do you feel working under pressure?
Ques:- The inverse ratio of 3: 2: 1 is?
Recent Answer : Added by DK On 2022-03-09 16:28:53:
Ratio is 3:2:1
Total=6
Reverse of ratio is 1/3:1/2:1/1
Portion of first part is=1/3*6=>2
Portion of second part is=1/2*6=>3
Portion of third part is 1*6=>6
∴So the new ratio is 2:3:6
Ques:- Given a credit card number with a certain number of fixed digits and a certain number of digit placeholders, find the number of solutions such that the entire number yields a remainder of 3 when divided by 13. Use properties of modulus
Ques:- What is catalytic converter?
Ques:- As a girl how do you plan to manage your family and your work side by side?
Ques:- A can have a piece of work done in 8 days, B can work three times faster than the A, C can work five times faster than A. How many days will they take to do the work together ?(a) 3 days(b) 8/9 days(c) 4 days(d) can't say
Recent Answer : Added by Pritam Das On 2022-03-09 16:33:23:
cant say
If c is 5 times faster than a then he can do it in 2 days alone.
Ques:- HOW DID YOU SPENT YOUR LAST DAY
Ques:- Find the odd man out:
10, 25, 45, 54, 60, 75, 80
A. 75
B. 54
C. 45
D. 10
Recent Answer : Added by Sai On 2022-03-09 16:28:43:
54
Ques:- What things frustrate you the most? How do you usually cope with them?
Ques:- How do you manage your own time and objectives?
Ques:- Experince in any other Fields ?
Ques:- The number of prime number between 0 and 100 is
A. 17
B. 25
C. 31
D. 39
Recent Answer : Added by Shidane On 2021-08-18 01:31:09:
B.25
Ques:- HOW CAN U SAY TIME IS MONEY.
Ques:- Why you interested for this job?
Ques:- How many experaice you have
Ques:- A car is travelling at a uniform speed. The driver sees a milestone showing a 2-digit number. After travelling for an hour the driver sees another milestone with the same digits in reverse order. After another hour the driver sees another milestone containing the same two digits. What is the average speed of the driver.
Ques:- Sachin was twice as old as Ajay 10 years back. How old is Ajay today if Sachin will be 40 years old 10 years hence?
A. 10 years
B. 20 years
C. 30 years
D. 50 years
Recent Answer : Added by Shalini On 2021-11-18 17:16:24:
20
Ques:- If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Ques:- The average between a two digit number and the number obtained by interchanging the digits is 9. What is the difference between the two digits of the number? (a) 8 (b) 2 (c) 5 (d) Cannot be determined (e) None of these
Recent Answer : Added by DK BOSS On 2021-07-15 08:38:59:
( d ) Cannot be determined
Ques:- When did you last coordinate your work with others in a team project? What was your most successful contribution?
Ques:- What was the last major problem that you were confronted with? What action did you take on it?
Ques:- if length of a rectangle is incr by 20% and width is decr by 20% then area
Recent Answer : Added by Admin On 2020-05-17 11:59:46:
we know,
area=b*h
b gets increased by 20% i.e (b+0.20b)
h gets decreased by 20% i.e (h-0.20h)
rewriting the equation(area=b*h),
area=(b+0.20b)*(h-0.20h)
area=b(1+0.20)*h(1-0.20)
area=b(1.20)*h(0.80)
area=b*h*(1.20)*(0.80)
area=b*h*(0.96)
i.e new area=0.96 times the original area
if 100% was the original area,it has decreased to 96%
so,100%-96%= 4%
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