plz answer dis fazt with the steps
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question 3.
let the number be x
then
4x/5 - 3x/4 = 4
(16x-15x)/20 = 4
x = 20×4
x = 80.
question 4.
let the digits are x and y
then the number = 10x + y
given.
x+y = 14
x = 14-y ...........(i)
now, when 36 is added to the number
then the number becomes 10y+x
so
10x+y + 36 = 10y + x
9x-9y = -36
x-y = -4
y - x = 4
x = y - 4. .....…....(ii)
from (i) and (ii)
14 - y = y - 4
2y = 10
y = 5
so x = y - 4
x = 5 - 4
x = 1
there fore the required number is
10x+y
=(10×1) + 5
=15
let the number be x
then
4x/5 - 3x/4 = 4
(16x-15x)/20 = 4
x = 20×4
x = 80.
question 4.
let the digits are x and y
then the number = 10x + y
given.
x+y = 14
x = 14-y ...........(i)
now, when 36 is added to the number
then the number becomes 10y+x
so
10x+y + 36 = 10y + x
9x-9y = -36
x-y = -4
y - x = 4
x = y - 4. .....…....(ii)
from (i) and (ii)
14 - y = y - 4
2y = 10
y = 5
so x = y - 4
x = 5 - 4
x = 1
there fore the required number is
10x+y
=(10×1) + 5
=15
pubg:
thanks
Answered by
2
Answer:
Step-by-step explanation:gfgjkfdjkgkfhghj
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