Advertisements
Advertisements
Question
In the following number, replace M by the smallest number to make resulting number divisible by 11: 3M422
Advertisements
Solution
The given number = 3M422
Sum of its digits in odd places = 3 + 4 + 2 = 9
Sum of its digit in even places = M + 2
Difference of the two sums = 9 – (M + 2)
9 – (M + 2) = 0
9 – 2 = M
M = 7
APPEARS IN
RELATED QUESTIONS
Write all the factors of: 48
The product of two numbers is 36 and their sum is 13. Find the numbers.
Without making any actual division show that 7007 is divisible by 7.
Find whether the following number is divisible by 2: 496
Find whether the following number is divisible by 4: 678
Find whether the following number is divisible by 8: 444320
Find whether the following number is divisible by 9: 4968
Find whether the following number is divisible by 9: 200314
Find whether the following number is divisible by 11: 5918
In the following number, replace M by the smallest number to make resulting number divisible by 3: 27M53
In the following number, replace M by the smallest number to make resulting number divisible by 9: 627M9
Write the first five multiples of the following number:
23
State if the following number is even or odd.
69
State if the following number is even or odd.
144
Write the factors of the following number.
8
Write the factors of the following number.
32
Write five three-digit numbers that are multiples of 2.
Factors of 7 __________________
Write down the factors of the given number.
16
Draw a picture of factor tree.
18
Write down the first 5 multiples of the given number.
7
Write down the first 5 multiples of the given number.
16
More tamarind seeds
Ammini is arranging 12 tamarind seeds in the form of different rectangles. Try to make more rectangles like this using 12 tamarind seeds. How many different rectangles can you make?
If there are 15 tamarind seeds how many rectangles can you make?
What are the factors of 36?
Find out all the factors of 36 from the multiplication chart.
In how many ways can you draw a factor tree for 24? Draw three of them below.
Write all the factors of the following number.
27
Which of the following is always a factor of every number?
If 6 is a common factor of two numbers, which could be the pair?
