Exercise 2.2
NCERT Class 8=> rational no:s
If you subtract 1/2 from a number and multiply the result by 1/2, you get 1/8.
What is the number?
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19
★ Assumption & Solving a Linear equation ★
Let the number be x.
Given that number is subtracted by 1/2 & multiplied by 1/2. The result obtained is 1/8
(x -1/2) * 1/2 =1/8
x-1/2 = 1/8*2
x -1/2= 1/4
x =1/4+1/2
x = 3/4
the number is 3/4
Let the number be x.
Given that number is subtracted by 1/2 & multiplied by 1/2. The result obtained is 1/8
(x -1/2) * 1/2 =1/8
x-1/2 = 1/8*2
x -1/2= 1/4
x =1/4+1/2
x = 3/4
the number is 3/4
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10
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