Ques:- A certain amount earns simple interest of Rs. 1750 after 7 years. Had the interest been 2% more, how much more interest would it have earned?
Recent Answer : Added by bruce On 2021-05-06 12:41:06:
I think –
1750 / 7 Years = 250
250 * 2% = 5
5 * 7 Years = 35
Ques:- What is your father’s name ?
Ques:- A positive number when decreased by 2 is equal to 15 times the reciprocal of the number. What is the number ?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:35:
Let the number be x.
So x-2 =15/x, or
x^2–2x-15=0, or
(x-5)(x+3)=0
Hence x = 5 or -3.
Check: When x=5, 5–2=3 which is 15/5=3.
When x=-3, -3–2=-5 which is 15/-3=-5.
The number is 5 or -3.
Ques:- Why you prefer Hewlett Packard?
Ques:- Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
Ques:- If there are 2 wheelers and 4 wheelers parked in a school located at the heart of the city, find the number of 4 wheelers parked there if there were 58 wheels are parked there.
Recent Answer : Added by gkt On 2021-11-09 15:53:15:
total no of 4 wheelers: 40
total no of 2 wheelers: 18
Ques:- In a class , except 18 all are above 50 years. 15 are below 50 years of age. how many people are there
Recent Answer : Added by 9074743593 On 2021-07-29 16:19:36:
None of these
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Ques:- How much time before you can join us?
Ques:- The product of two successive numbers is 4556. Which of the following is the larger of the two numbers?
Ques:- What is the sum of two consecutive even numbers, the difference of whose squares is 84?
Recent Answer : Added by Admin On 2022-09-29 16:21:46:
Let the numbers be x and x + 2.
Then, (x + 2)2 – x2 = 84
⇒ 4x + 4 = 84
⇒ 4x = 80
⇒ x = 20.
∴ The required sum
= x + (x + 2)
= 2x + 2
= 42
Ques:- About personal
Ques:- Education & training
Ques:- We are sitting across a round circular table ( Me and you ) and we start a game of taking trns in placing a coin on the table ( i.e. I put one coin and then you put one coin and so on ) the last person who is not able to put the coin on table losses.If you start this game who will win this game ? And what strategy you will apply to increase your probability of winning this game. Assumptions Size of table is much larger then the size of coin Both of us have infinite supply of same sized coins.
Ques:- Number Series 3,18,4,24,5,30,?
Recent Answer : Added by Rohini kale On 2021-12-23 16:25:58:
6,36
Ques:- Tell me about urself n family background
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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:- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?
Recent Answer : Added by A.C. On 2022-03-09 16:28:57:
8/15 left.
1/15 * 4 + 1/20 * 4 = 7/15
1 – 7/15 = 8/15
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Ques:- How many numbers up to 500 are divisible by 23?
Recent Answer : Added by pooja Jawade On 2021-11-25 15:47:47:
21
Ques:- What is your name ,education,family background
Ques:- A train of length 150 metres takes 40.5 seconds to cross a tunnel of length 300 metres. What is the speed of the train in km/hr?
A. 13.33
B. 26.67
C. 39.16
D. 40
Recent Answer : Added by Kelvin Chibeti On 2022-10-07 17:19:15:
1km = 1000m
Xkm = 300m
X=0.30km
1hr = 3,600s
X = 40.5s
0.01125hr
Therefore; 0.3km/0.1125hr= 26.6666=26.67km/hr
I think –
1750 / 7 Years = 250
250 * 2% = 5
5 * 7 Years = 35