7 times a 2 digit number is equal 4 times the number obtain by reversing the places of its digits if the distance between the digit is 3 find the number
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Answer:36
Step-by-step explanation:
Let the number the 10a+b.
Reversed number =10b+a.
Also given is that b-a=3.
b=(a+3)
7(10a+b)=4(10b+a)
70a+7b=40b+4a
70a-4a=40b-7b
66a=33b
2a=b. Putting the value of b from above equation.
2a=a+3
2a-a=3
a=3
Number =10(3)+6
=30+6
=36
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