Ques:- The three boxes 1,2,3 has values resp. AB,BC,AC Get 2A(B+C) +AC-2C(A-B)in Box 1 using only addition in 3 steps.
Recent Answer : Added by Admin On 2020-05-17 12:02:03:
GIVEN: 2A(B+C)+AC-2C(A-B)
THEREFORE 2AB+2AC+AC-2AC+2BC
2AB+AC+2BC
2(AB+BC)+AC
LET b1=AB b2=BC b3=AC
STEP1: b1 = b1+b2
so b1 = AB+BC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AC
STEP 2: b3 = b1+b3
so b3 = AB+BC+AC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AB+BC+AC
STEP3:
NOW: b1 = b1+b3
so b1 = AB+BC+AB+BC+AC
=2(AB+BC)+ AC
AB BC AC
STEP1 AB+BC BC AC
STEP2 AC BC AB+BC+AC
STEP3 AB+BC+AB+BC+AC BC AB+BC+AC
i.e 2(AB+BC)+AC BC AB+BC+AC
Ques:- Some cats got together to decide killing the 999919 mice, each cat kills equal no. of mice and each cat kills more no. of mice than cats there were. Then what are the number of cats?
Ques:- A train passes a station platform in 36 seconds and a man standing on the platform in 20 seconds. If the speed of the train is 54 km/hr, what is the length of the platform?
Recent Answer : Added by Uday On 2022-03-11 17:00:33:
540 meters or 0.54 km
Ques:- If for a psu if que.comes like what u can contribute towards the progress of company..then what should be the ans?
Ques:- The length of a rectangle is increased by 25% and its breadth is decreased by 20%. What is the effect on its area?
Ques:- A disc is spinning on a spindle, and you don’t know which way. You are given a set of pins. Describe how you would use them to determine which way the disc is spinning?
Ques:- Tell me about a time when you helped resolve a dispute between others.
Ques:- Are you reliable? or Can I trust you with responsibilities?
Ques:- How long does a train 165 meters long running at the rate of 54 kmph take to cross a bridge 660 meters in length?
Recent Answer : Added by Nayana On 2022-09-23 18:07:00:
Speed of train = 54km/hr
= 54 x (5/18) m/s
= 15 m/s
Length of train = 165m
Time required to cross a bridge of 660m in length = (660+165) / 15
= 55 seconds
Ques:- If I give this job to u what output u can give to our company?
Ques:- Please tell about him self
Ques:- A rich man died. In his will, he has divided his gold coins among his 5 sons, 5 daughters and a manager. According to his will: First give one coin to manager. 1/5th of the remaining to the elder son.Now give one coin to the manager and 1/5th of the remaining to second son and so on….. After giving coins to 5th son, divided the remaining coins among five daughters equally.All should get full coins. Find the minimum number of coins he has?
Recent Answer : Added by Biplab Nath On 2021-07-31 16:35:53:
Answer: 3121 gold coins
Let total no of coins be M
Let the disbursement D to each son:
D1 = 1 + (M – 1)/5 = (M + 4)/5
D2 = 1 + ( M – D1 -1)/5 = (D1) * 4/5
D3= (D2) * 4/5
D4= (D3) * 4/5
D5= (D4) * 4/5
Total disbursements to sons=
= ∑D= (M+4)*1/5[ 1+4/5+(4/5)(4/5)+ (4/5)(4/5)(4/5)+(4/5)(4/5)(4/5)(4/5) ]
= (2101/3125)*(M+4)
Thus balance left for daughters =M-{(2101/3125)*(M+4)}
=(1024M-8404)/3125
This balance should be a positive integer ( assuming M and all disbursements are full coins )
Thus 1024M-8404 should be a multiple of 3125….so….
1024M – 8404 = N*3125 where N is an integer
Using Python code:
n=int(input(“Enter num n: “))
X=int()
a=int()
a=0
X=’ ‘
for a in range(0,n+1):
a=a+1
X= (3125*a + 8404)/1024
if (3125*a + 8404)% 1024== 0:
print(X,a)
Enter num n: 10000
3121.0 1020
6246.0 2044
9371.0 3068
12496.0 4092
15621.0 5116
18746.0 6140
21871.0 7164
24996.0 8188
28121.0 9212
We get minimum value of N = 1021 and M = 3121 gold coins
Ques:- A man can row 30 km downstream and 20 km upstream in 4 hours. He can row 45 km downstream and 40 km upstream in 7 hours. Find the speed of man in still water?
Ques:- What format does Frozen represent?
Ques:- Is there anything I've mentioned that makes you think I'm not the best candidate for this job?
Ques:- About myself, about experience, about my working ability & potentiality.
Ques:- A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined them after six months with an amount equal to that of B. In what proportion should the profit at the end of the one year be distributed among A, B and C?
A. 3 : 5 : 2
B. 3 : 5 : 5
C. 3 : 5 : 8
D. 6 : 10 : 5
Recent Answer : Added by yangqi On 2021-08-28 11:27:09:
D
Ques:- Tell me something about you, your qualification, where lastly working?
Ques:- Find out the wrong number in each sequence:
8, 13, 21, 32, 47, 63, 83
A. 32
B. 47
C. 63
D. 83
Recent Answer : Added by A.Madhav On 2022-01-08 16:06:20:
47 is answer by consecutive adding of
8+5=13
13+8=21
21+11=32
32+14=46
46+17=63
Ques:- If 12 file cabinets require 18 feet of wall space, how many feet of wall space will 30 cabinets require?
Recent Answer : Added by Admin On 2020-05-17 12:01:33:
45
Ques:- Why do you want leave your current job?
Ques:- Find out the wrong number in each sequence:
1, 2, 6, 15, 31, 56, 91
A. 15
B. 31
C. 56
D. 91
Recent Answer : Added by Emmanuel On 2022-05-17 09:08:51:
91
Ques:- Why do you think you are suited for this job b for Position based on domain Expertise & Past Experience?
Ques:- Oranges are bought at 11 for a rupee and an equal number more at 9 a rupee. If these are sold at 10 for a rupee, find the loss or gain percent?
Ques:- Why only MBA?why not any other professional degree you have opted for?
Ques:- What are workload managers for?
Ques:- When did ICDS setup in Tripura?
Recent Answer : Added by Abhi Chatterjee On 2022-01-08 16:05:37:
1972
Ques:- Regarding experience in same field
Ques:- Imagine you are standing in front of a mirror, facing it. Raise your left hand. Raise your right hand. Look at your reflection. When you raise your left hand your reflection raises what appears to be his right hand. But when you tilt your head up, your reflection does too, and does not appear to tilt his/her head down. Why is it that the mirror appears to reverse left and right, but not up and down?
Recent Answer : Added by Admin On 2020-05-17 12:01:39:
The definition of left and right depends on the observer and
is reversed when facing the opposite direction. The
definition of up and down does not depend on the orientation
of the observer.
Ques:- The sides of a cube are in the ratio 1:2 the ratio of their volume is?
GIVEN: 2A(B+C)+AC-2C(A-B)
THEREFORE 2AB+2AC+AC-2AC+2BC
2AB+AC+2BC
2(AB+BC)+AC
LET b1=AB b2=BC b3=AC
STEP1: b1 = b1+b2
so b1 = AB+BC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AC
STEP 2: b3 = b1+b3
so b3 = AB+BC+AC
THEREFORE
NOW: b1 = AB+BC b2 = BC b3 = AB+BC+AC
STEP3:
NOW: b1 = b1+b3
so b1 = AB+BC+AB+BC+AC
=2(AB+BC)+ AC
AB BC AC
STEP1 AB+BC BC AC
STEP2 AC BC AB+BC+AC
STEP3 AB+BC+AB+BC+AC BC AB+BC+AC
i.e 2(AB+BC)+AC BC AB+BC+AC