Advertisements
Advertisements
Question
Without performing actual computations, find the quotient when 94 − 49 is divided by
(i) 9
(ii) 5
Solution
\[(i)\text{We know that when } \overline{ab} - \overline{ba} \text{ is divided by 9, the quotient is a - b .} \]
\[\text{Therefore, when (94 - 49) is divided by 9, the quotient is (9 - 4 = 5) . }\]
\[(ii)\text{ We know that when } \overline{ ab }-\overline{ ba } \text{ is divided by (a - b), the quotient is 9 .} \]
\[\text{ Therefore, when (94 - 49) is divided by (9 - 4 = 5), the quotient is 9 .}\]
APPEARS IN
RELATED QUESTIONS
Which of the following statement is true?
If a number exactly divides the sum of two numbers, it must exactly divide the numbers separately.
Fill in the blank space in the same way.
If A × 3 = 1A, then A = ______.
If a number a is divisible by b, then it must be divisible by each factor of b.
If AB × 4 = 192, then A + B = 7.
If AB + 7C = 102, where B ≠ 0, C ≠ 0, then A + B + C = 14.
Find the least value that must be given to number a so that the number 91876a2 is divisible by 8.
Find the value of k where 31k2 is divisible by 6.
756x is a multiple of 11, find the value of x.
If 56 × 32y is divisible by 18, find the least value of y.