please solve this question with full explanation
Answers
Answer:
answer is 6
First of all we have to start with continue subtraction.
So the number is 175
175 - 1 = 174
174 - 3 = 171
171 - 5 = 166
166 - 7 = 159
159 - 9 = 150
150 - 11 = 139
139 - 13 = 126
126 - 15 = 111
111 - 17 = 94
94 - 19 = 75
75 - 21 = 54
54 - 23 = 3131 - 25 = 6
6 - 27 = X
So, 6 is subtracted from 175
175 - 6
169.
169 - 1 is 168
168 - 3 is 165
165 - 5 is 160
160 - 7 is 153
153 - 9 is 144
144 - 11 is 133
133 - 13 is 120120 - 15 is 105
105 - 17 is 87
87 - 19 is 68
68 - 21 is 47
47 - 23 is 25
25 - 25 is 0.
So means 13 is the root of 169.
Correct answer is 6 should be subtracted
Step-by-step explanation:
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Answer:
The least no is (C) 6
Step-by-step explanation:
There are two methods of finding it:-
(i) 175 = 5 × 5 × 7
so, We substract 1 from 175, we get 174 which not a perfect square
again, We substract 2 from 175, we get 173 which not a perfect square
and so on, When we substract 6 from 175, we get 169 which is a perfect square of 13.
This method is called continued subtraction method.
(ii) now, By division method find square root of 175 [but not in decimal].
which is in attachment,
Substract the remainder from the number that is 175 - 6 = 169.
and 169 is the perfect square of 13.
hope it will help you.
