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?
Answer Posted / manish vazirani
(number-8)/D = any integer ---(1) (since the remainder will
be zero)
(number-21)/3D = any integer --(2) (since the remainder will
be zero)
Multiply and divide lhs of equation 1 with 3
3x (number-8)/3D = any integer
=> (3x number-24)/3D = any integer--(3)
Now, subtract equation (2) from equation (3),
((3x number-24)/3D) - ((number-21)/3D) = any integer value
=> (2x number - 3)/3D = any integer value
the above equation satisfies the condition given in the
equation. Hence the answer is 3.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
There are 9 coins. One of 9 is less weighted and others have equal weighed. Find the minimum no of balances to find the defective coin?
find then next series number 5,6,7,8,10,11,14,..?
A room is 30 X 12 X 12. a spider is on the middle of the smaller wall, 1 feet from the top, and a fly is on the middle of the opposite wall 1 feet from the bottom. what is the min distance required for the spider to crawl to the fly.
1) 1)difference between ip and non ip protocol.
Robert invested rupees 8000 in a fixed deposit scheme for 2 years at compound interest of 5 p.c per annum. Calculate and choose from the below mentioned option, how much amount will Robert get from the fixed deposit on maturity?
A ship went on a voyage after 180 miles a plane statrted with 10 times speed that of the ship. Find the distance when they meet from starting point.
Ajay and Vijay ave their salaries in the ratio of 2:3. If each of their salaries are increased by Rs 4000, the new ration comes to be 40:57. How much is the present salary of Vijay?
A person runs 6 ft in 1/4 sec. how much it will run in 10 sec. ans 240
chief : tribe :: governor :
Which of the following is not a valid DEFINE GDG parameter a) OWNER b)LIMIT c) SCRATCH c)ALTER
A School Has 30% Students From Maharashtra .out Of These 20% Are Bombay Students. Find The Total Percentage Of Bombay?
what is the angle between two hands of a clock when time is 8-30
The cost of one pencil, two pens and four erasers is Rs.22 while the cost of five pencils, four pens and two erasers is Rs.32.How much will three pencils, three pens and three erasers cost?
What is the 8th term in the series 1, 4, 9, 18, 35, 68, . . .
Want to get some material for apptitud e for banking preparation