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प्रश्न
See the following pattern carefully:
- If n denotes the number of figures and S denotes the number of matches; find S in terms of n.
- Find how many matches are required to make the :
(1) 15th figure
(2) 40th figure - Write a discretion of the pattern in words.
उत्तर
-
n 1 2 3 4 S 7 10 13 16
S = 3n + 4 - (1) 15th figure has = 3 x 15 + 4 = 49 matches
(2) 40th figure has = 3 x 40 + 4 = 124 matches - It can easily be observed that each time the figure (n) is increased by 4, the number of matches (S) increased by 3.
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संबंधित प्रश्न
State true or false:
0 + 18= 18 + 0
Fill in the blank:
54 + 234 = 234 + ______
Which property of addition is satisfied by :
8 + 7 = 15
Which property of addition is satisfied by :
3+ (5 + 4) = (3 + 5)+ 4
State True or False:
If x is a whole number then -x is also a whole number.
(16 – 8) x 24 = _________ = _______
16 x 24 – 8 x 24 =_______ – ______ = _______
Is (16 – 8) x 24 = 16 x 24 – 8 x 24 ? ________
Is the type of result always true ? ________
Name the property used here _________
Fill in the blank :
328 x 573 = ________ x 328
Use distributive law to evaluate :
984 x 102
Evaluate using properties :
8324 x 1945 – 8324 x 945
The greatest number which always divides the product of the predecessor and successor of an odd natural number other than 1, is ______.
