Interested to Buy Any Domain ? << Click Here >> for more details...
A number when divided by D leaves a remainder of 8 and when
divided by 3D leaves a remainder of 21 . What is the
remainder left, when twice the number is divided by 3D?
- 5 Answers
- 17545 Views
- TCS, I also Faced
- E-Mail Answers
Answer Posted / chanki choudhary
(number-8)/D = any integer value (coz remainder 0)
(number-21)/3D = any integer value (coz remainder 0)
multiply with 2
2x(number-21)/3D = 2 x any integer value = integer
(2x number -42)/3D = integer value
so we can say that if we divide (2xnumber) with D remainder
should be 42
Again look
multiply and divide lhs of equation 1 with 3
3x (number-8)/3D = any integer value
(3x number-24)/3D = integer
subtract equation 1 from this equation
((3x number -24)/3D)-((number-8)/D)= large integer- small
integer
(2x number -3)/3D = integer value
so remainder should be 3
now we found 2 answers
3 and 42
actually both are right
but 3 is appropriate answer
we can conclude that number D is 39
so we got answer 42
| Is This Answer Correct ? | 9 Yes | 5 No |
Post New Answer View All Answers
A car is traveling at a uniform speed. The driver sees a milestone showing a 2-digit number. After traveling 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.
20% of a 6 litre solution and 60% of 4 litre solution are mixed. What percentage of the mixture of solution ?
500 men are arranged in an array of 10 rows and 50 columns . ALL tallest among each row aare asked to fall out . And the shortest among THEM is A. Similarly after resuming that to their originaal podsitions that the shorteest among each column are asked to fall out. And the longest among them is B . Now who is taller among A and B ?
Find the next series: SE QU EN TI ?
sum of 5 consecutive numbers is 35. how many of the numbers are prime:
There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays at least two games. They are 50 altogether. How many of them plays none of the games.
X < 0, Y <> 0 then what is the possibility that the result is always positive?
Want to get some material for apptitud e for banking preparation
Find perimeter of a trapezium with 3 sides given and distance between parallel sides given.
There are five thieves, each loot a bakery one after the other such that the first one takes 1/2 of the total no. of the breads plus 1/2 of a bread. Similarly 2nd, 3rd,4th and 5fth also did the same. After the fifth one no. of breads remained are 3. Initially how many breads were there?
A person has Rs 100/- in his pocket, he can as 25 pencils or 15 books. He kept 15% of the money for travelling expenses and purchased 5 pencils. So how many books he can purchase with the remaining money.
Fallin height is proportional to square of the time. One object falls 64 cm in 2 sec. than in 6 sec. from how much height the object will fall?
p and q are positive integers with their average 5, find how many different values can p take
A man shapes 3 cardboards in 50 minutes,how many cardboards does he shape in 5 hours? answer 18cardboards.
Find the hypotaneous of a right angle isosceles triangle whose area is 50.
