Question

which number will increase by 0.4 if the digit 3 is replaced by 7​

Answer 1

Given :  which number will increase by 0.4 if the digit 3 is replaced by 7​

To find : Number

Solution:

i believe this Question should have choice to choose

as there can be infinite number of solutions

as   ...xxxx.3xxxx....     ( x can have different values at each place & count of x can be any  )

will increase by 0.4  if 3 is replaced by 7

as 3 is replaced by 7

increase in face value = 7 - 3  = 4

increase required  = 0.4

place value increase = 0.4

Hence   3   & 7 need to be a  tenth place

rest all digits are irrelevant & can be  any

few example

0.7   is 0.4  more than 0.3

1.7   is 0.4  more than  1.3

0.75  is 0.4  more than 0.35

Hence infinite number of possible solution

3 need to be at tenths place

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One hundred twenty five and four tenths,Write the decimal for it ...

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