Seven times a two digit number is equal to four times the number obtained by reversing the order of its digits. If the difference of the digit is 3 determine the number
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you answer is 36
36*7=252
63*4=252
6-3=3
36*7=252
63*4=252
6-3=3
dhanshreporl:
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U r from Tamil right??
ya
Oh so sweet of u
Can u help me
In this sum
ya
which sum?
In what ratio does the x axis divide the line segment joining the point(-4,-6) and (-1,7)? Find the co-cordinates of the point of division
not sufficient !!!!!!!!
Answered by
2
Answer:
36
Step-by-step explanation:
Let the unit digit be a and tenth unit be b .
So , number = 10 b + a
It's said number is seven times is equal to reversing the order of its digit.
= > 7 ( 10 b + a ) = 4 ( 10 a + b )
= > 70 b + 7 a = 40 a + 4 b
= > 66 b = 33 a
= > a = 2 b ... ( i )
Also given numbers' difference is 3 .
a - b = 3 ( ii )
From ( i ) and ( ii ) we get :
a b - b = 3
b = 3
= > a = 6
Hence number = > 30 + 6
= > 36.
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