A number, when divided by 783, gives a remainder 48. What remainder would be…
2023
A number, when divided by 783, gives a remainder 48. What remainder would be obtained by dividing the same number by 29?
- A.
11
- B.
12
- C.
19
- D.
45
Attempted by 9 students.
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Correct answer: C
Step-by-Step Solution
To find the remainder when a number is divided by a smaller divisor, we can use the property of remainders based on factors of the original divisor.
Express the number in terms of the first divisor:
Let the number be N. When N is divided by 783, it gives a remainder of 48.
This can be written as: N = 783 * k + 48, where k is the quotient.
Check the relationship between the divisors:
We need to find the remainder when N is divided by 29.
Notice that 783 is a multiple of 29: 783 / 29 = 27.
Therefore, N = (29 * 27 * k) + 48.
Simplify the expression:
We can further break down 48 into a multiple of 29 and a remainder:
48 = (29 * 1) + 19.
Substituting this back into the expression for N:
N = (29 * 27 * k) + (29 * 1) + 19
N = 29 * (27k + 1) + 19.
Determine the remainder:
The equation shows that when N is divided by 29, the remainder is 19.