4) 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?
a) 13 b) cannot be determined c) 3 d) 42
Answer Posted / neelam venkata balaji
let's number is n
so n=Dx+8------->1
n=3Dy+21--------->2
from 1 & 2 D(x-3y)=13
here 13 is prime number so it has factors 1 and 13 only
x-3y must be 1
let x=4 and y=1
then n=60
so 2n is divided that is 120 by 3D that is by 39 we get
the remainder as 3
| Is This Answer Correct ? | 107 Yes | 15 No |
Post New Answer View All Answers
1. Questions on probability 2. Questions on statistics (mainly growth rates, market shares, etc.) 3. Questions on general logics 4. Evaluate strengths and weekness of proposed product All questions are open test
One dollar is saved in one month. Then how much dollar is saved in one day?
The ratio for Boys to Girls is 6:4. 60% of the boys and 40% of girls take lunch in the canteen. What % of class takes lunch in canteen.
if on a salary s per month, a tax of x% of the salary and another of r% of the salary is deducted what is the income.
the minimum of (2x+1)**2 + (x+2) is at x =
Which of the following does multithreading allow? A. several transactions that require the same program to use one copy of the program. B. many tasks to be allocated to the terminal. C. an audit trail of all files records from all files updated by a particular application
There are two trees in a lawn. One grows at a rate 3/5 of the other in 4 years. If the total growth of trees What is the height of the smaller tree after 2 years
A person has his own coach&whenever he goes to railway station he takes his coach.One day he was supposed to reach the railway station at 5 O'clock.But he finished his work early and reached at 3 O'clock. Then he rung up his residence and asked to send the coach immediately. He came to know that the coach has left just now to the railway station. He thought that the coach has left just now to the railway station.He thought that he should not waste his time and started moving towards his residence at the speed of 3mi/hr.On the way,he gets the coach and reaches home at 6 o'clock.How far is his residence from railway station.
p and q are positive integers with their average 5, find how many different values can p take
The price of raw materials has gone up by 15%, labour cost has also increased from 25% of the cost of raw material to 30% of the cost of raw material. By how much percentage should there be a reduction in the usage of raw materials so as to keep the cost same
There are 5 boxes in a cargo. The weight of the 1st box is 200 KG, the weight of the 2nd box is 20% higher than the third box, whose weight is 25% higher than the 1st box weight. The 4th box which weighs 350 KG is 30% lighter than the 5th box. Find the difference in average weight of the 4 heaviest boxes and the four lightest boxes.
Unsreambled the word P U T E C A S A H (like that) paraschute
The cost of an item is Rs 12.60. If the profit is 10% over selling price what is the selling price ?
A man how many bikes of Rs 14000 can buy by selling 2100 bikes of Rs500/- of each
Find the longest palendrom in a string? Example Input: abfgerccdedccfgfer Output: ccdedcc i want a solution in C/C++ language