Ques:- A certain type of mixture is prepared by mixing brand A at Rs.9 a kg. with brand B at Rs.4 a kg. If the mixture is worth Rs.7 a kg., how many kgs. of brand A are needed to make 40kgs. of the mixture?
Recent Answer : Added by Admin On 2022-09-29 17:39:56:
Answer:
24
Step-by-step explanation:
A + B = 40.
And at Rs 7 a kg for 40 kg, you want a total of Rs.280.
So the second equation is 9A + 4B = 280
From the first equation: B = 40 – A
and sub into the second equation:
9A + 4(40-A) = 280
9A + 160 – 4A = 280
5A = 120
A = 24.
And you should check: B should equal 40-24 = 16. Check with the final equation: 9*24 + 4*16 = 216 + 64 = 280. So it works.
Your answer, of course, is A = 24
Ques:- Find the least number which when divided by 35 and 11 leaves a remainder of 1 in each case.
Ques:- A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?
Ques:- ABOUT PAST EXPE. & REASON OF JOB CHANGE
Ques:- You have given 3 ropes and one match box.Each rope burn in 30 min.How do you measure 52 and half min.?
Recent Answer : Added by Ashish Sankritya On 2021-09-22 16:56:16:
Burn Rope One first, it will burn in 30 mins.Mark 30 mins and at the end of 30 mins now burn second rope from both sides (15 mins it will take ),and simultaneously burn third and last rope until it is half left.30+15= 45 , Remaining time 7.5 mins.By this time last rope is burnt half ,and now burn it from both sides as well it will exhaust in 7.5 mins. 30+15+7.5=52.5 measured.
Ques:- The next number in the series 0, 7, 26, 63 is
A. 124
B. 148
C. 195
D. 255
Recent Answer : Added by Admin On 2020-05-17 12:03:19:
( A ) 124
Ques:- A and B can do a piece of work in 12 days and 16 days respectively. Both work for 3 days and then A goes away. Find how long will B take to complete the remaining work?
Recent Answer : Added by Karthik Rajagopalan On 2022-08-14 16:28:59:
9
Ques:- Where you are right now?
Ques:- Describe your past career in 200 words.
Ques:- How you came to know about this company?
Ques:- A company installed 36 machines at the beginning of the year. In March they installed 9 additional machines and then disconnected 18 in August. How many were still installed at the end of the year.
Recent Answer : Added by Admin On 2020-05-17 12:01:31:
27
Ques:- A right circular cylinder and a cone are there. Base radius of cone is equal to radius of cylinder. What is the ratio of height to slant side if their volume are the same?
Recent Answer : Added by Admin On 2020-05-17 12:01:55:
underroot(1-r^2)/3
Ques:- It comes once in a year and twice in a week what is that?
Recent Answer : Added by Gaurav Borse On 2021-10-12 12:52:50:
Its Alphabet “e”
Ques:- What is FOB?
A. Free on Bond
B. Free on Board
C. Free Operational Bond
D. Freight over Board
Ques:- Tell me about your qualification?
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:- Anil invested a sum of money at a certain rate of simple interest for a period of five years. Had he invested the sum for a period of eight years for the same rate, the total intrest earned by him would have been sixty percent more than the earlier interest amount. Find the rate of interest p.a.
Ques:- What are the disadvantages of the mobile.
Ques:- Tell about yourself, please do give with example .
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Ques:- On confidential matters?
Ques:- If a light flashes every 6 seconds, how many times will it flash in ? of an hour?
Recent Answer : Added by Admin On 2022-09-29 15:41:29:
451 times.
Explanation: There are 60 minutes in an hour.
In ¾ of an hour there are (60 * ¾) minutes = 45 minutes.
In ¾ of an hour there are (60 * 45) seconds = 2700 seconds.
Light flashed for every 6 seconds.
In 2700 seconds 2700/6 = 450 times.
The count start after the first flash, the light will
flashes 451 times in ¾ of an hour.
Ques:- If two dies are thrown simultaneously what is the prob. of one of the dice getting face 6 ?
Recent Answer : Added by Admin On 2020-05-17 12:03:10:
sample space=36
prob of one of the dice getting face 6
i.e n={(1,6)(2,6)(3,6)(4,6)(5,6)(6,1)(6,2)(6,3)(6,4)
(6,5)(6,6)}=11
p=n/s
p=11/36
ans:11/36
Ques:- Tell me about the most boring job you?ve ever had.
Ques:- On a certain island,5% of the inhabitants are one-legged.The total population is 10,000.If half of the two legged persons go barefoot,what is the least number of shoes needed in the island?
Recent Answer : Added by DK BOSS On 2021-07-16 09:53:22:
10000
one-legged =5% of 10000=500
remaining=10000-500=9500
barefooted=9500/2=4750
remaining people= 9500-4750=4750
hence required number of shoes= 4750*2+500*1=100005% of 10000 = 500 one legged
9500 / 2 = 4750 bare foot
minium no of shoes = 4750*2 + 500*1 = 10000
Ques:- How many such letters are there in the word ORIENTAL each of which is as for away from the beginning of the word as when they are arranged alphabetically?
Recent Answer : Added by DK BOSS On 2021-07-17 10:05:37:
Answer: Option C two
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:- What is the missing number in the series 1, 2, 4, 7, 11, .?
Recent Answer : Added by Sachin Shah On 2021-12-09 18:39:55:
Answer:
24
Step-by-step explanation:
A + B = 40.
And at Rs 7 a kg for 40 kg, you want a total of Rs.280.
So the second equation is 9A + 4B = 280
From the first equation: B = 40 – A
and sub into the second equation:
9A + 4(40-A) = 280
9A + 160 – 4A = 280
5A = 120
A = 24.
And you should check: B should equal 40-24 = 16. Check with the final equation: 9*24 + 4*16 = 216 + 64 = 280. So it works.
Your answer, of course, is A = 24