Homework Help: Math

Posted by Simran kaur on Friday, November 2, 2012 at 10:09pm.

In a 2digit no. ,the face value of the digit at the tens place is four times dat of the digit at ones place. If 54 is substrctd frm the no. ,the digit are reversed.find the no.
Ans is 82

Math - Steve, Saturday, November 3, 2012 at 3:42am
t = 4u
10t+u - 54 = 10u+t

10*4u+u-54 = 10u+4u
40u+u-54=14u
26u=52
u=2

so, the number is 82
Math - Simran kaur, Sunday, November 4, 2012 at 2:10am
Thnx..
Math - Simran kaur, Wednesday, November 7, 2012 at 9:16pm
Sory i dont undrstnd
Math - Simran kaur, Sunday, November 18, 2012 at 2:30am
Plz solve dis qustn again in simple method bcz i didnt undrstnd

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