Ques:- The incomes of two persons A and B are in the ratio 3:4. If each saves Rs.100 per month, the ratio of their expenditures is 1:2 . Find their incomes?
Recent Answer : Added by srikanth On 2022-03-09 16:41:20:
50 each
3x -y = 100
4x-2y = 100
Ques:- A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is?
Recent Answer : Added by isha On 2020-11-08 02:14:20:
20
speed of downstream=speed at still water+flow
= 15+5=20
Ques:- X can do a piece of work in 10 days. He works at it for 4 days and then Y finishes it in 9 days. In how many days can X and Y together finish the work?
Ques:- Find the missing number in the series. 1, 4, 6, 8, 9, 10, 12, ..
Ques:- What is the next number in the series 4, 9, 25, 49,……
Recent Answer : Added by Balita On 2021-08-17 14:35:47:
121 I. e it is Prime numbers square
Ques:- man walks east & from turns to right & from to left & then 45degrees to right.in which direction he went
Recent Answer : Added by padmavathy On 2022-04-02 06:58:14:
south east
Ques:- Which of the commodities listed below is the highestforeign exchange earner for India?
A. Tea
B. Coffee
C. Coal
D. Iron ore
Recent Answer : Added by Admin On 2022-09-27 17:31:32:
A. Tea
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:- If in a certain language, NATURE is coded as MASUQE, how is FAMINE coded in that code ?
Recent Answer : Added by Nagarjuna On 2022-10-27 17:33:14:
EALIME
Ques:- What makes you suitable for this job?
Ques:- How did you find out about this company?
Ques:- 1/3 of girls , 1/2 of boys go to canteen .What factor and total number of classmates go to canteen.
Ques:- What r u neet first family money carier? and why ?
Ques:- The difference of two consecutive even numbers squares is 84, then what is the sum of these numbers?
Recent Answer : Added by shivaprasad On 2021-10-12 12:52:39:
(x+2)^2 -x^2 = 84
X=20
So (20,22)
Sum= 42
Ques:- How will you be able to justify yourself as per your CV records?
Ques:- Find the smallest number in a GP whose sum is 38 and product 1728?
Ques:- 0.23 + 0.02323 + 0.002323…. == ???
Recent Answer : Added by Admin On 2020-05-17 12:03:13:
0.255555…..
Ques:- What is your qualification. What is your experience?
Ques:- The dimensions of a certain machine are 48″ X 30″ X 52″. If the size of the machine is increased proportionately until the sum of its dimensions equals 156″, what will be the increase in the shortest side?
Recent Answer : Added by Admin On 2020-05-17 12:00:28:
6″
Ques:- How well do you adapt to new working environments?
Ques:- A tradesman by means of his false balance defrauds to the extent of 20%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?
Recent Answer : Added by MAMIDI LIJITA SREE On 2023-01-21 17:36:43:
34
Ques:- Tell me something about your happiest day of your life.
Ques:- Two boats start from opposite banks of river perpendicular to the shore. One is faster then the other. They meet at 720 yards from one of the ends. After reaching opposite ends they rest for 10mins each. After that they start back. This time on the return journey they meet at 400yards from the other end of the river. Calculate the width of the river.
Ques:- Why have you been out of work so long?
Ques:- Why should I hire you from the outside when I could promote someone from within?
Ques:- A building with height D shadows up to G. A Neighbour building with what height shadows C feet.
Recent Answer : Added by Admin On 2020-05-17 12:00:38:
Recent Answer : Added by NEPPALI SAI KRISHNA On 2021-11-22 18:35:05:
9
Ques:- 2 men r playing tossing a coin. If one of them wins he gets 1$ from the loser. At the end of a no. of games, one of them had lost 3$ and the other won 3 times. How many games did they play?
Recent Answer : Added by Admin On 2022-09-29 15:53:16:
Let and A and B are playing and A has 3$ and B won 3 times.
Total money earn by A = no of games A won – no of games A loss
if A loss game means B won.
Therefore
Total money earn by A = no of games A won – no of games B won
3 = no of games A won -3
no of games A won=6
So
A won = 6 games
B won = 3 games
Hence total no of games is 9
Ques:- The proportion of copper and zinc in the brass is 13:7. How much zinc will there be in 100 kg of brass?
Recent Answer : Added by Khan On 2022-08-14 16:28:36:
35Kg
Ques:- HCF and LCM two numbers are 12 and 396 respectively. If one of the numbers is 36, then evaluate the other number ?
Recent Answer : Added by abhishek On 2022-01-16 17:19:24:
50 each
3x -y = 100
4x-2y = 100