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Question
Express 49 as the sum of 7 odd numbers.
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Solution
We know that the sum of first n odd natural numbers is n2.
49 = (7)2
Therefore, 49 is the sum of the first 7 odd natural numbers.
49 = 1 + 3 + 5 + 7 + 9 + 11 + 13
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RELATED QUESTIONS
Observe the following pattern and find the missing digits.
112 = 121
1012 = 10201
10012 = 1002001
1000012 = 1 ______ 2 ______ 1
100000012 = ______
Observe the following pattern and supply the missing number.
112 = 121
1012 = 10201
101012 = 102030201
10101012 = _____
____2 = 10203040504030201.
Using the given pattern, find the missing numbers.
12 + 22 + 22 = 32
22 + 32 + 62 = 72
32 + 42 + 122 = 132
42 + 52 + _ 2 = 212
52 + _ 2 + 302 = 312
62 + 72 + _ 2 = __2
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To find pattern:
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Express 121 as the sum of 11 odd numbers.
How many numbers lie between squares of the given numbers?
12 and 13
Square of the number 7 is _________
64 is the square number of __________
A number multiplied by _________ is called square of that number
Fill in the blank box.
Express 81 as the sum of first nine consecutive odd numbers.
