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Q.

There is a number consisting of two digits, the digit in the units place is twice that in the tens place and if 2 be subtracted from the sum of the digits, the difference is equal to 1/6 th of the number. The number is

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a

23

b

24

c

25

d

26

answer is D.

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Detailed Solution

Number =xy

 ⇒y=2xx+2x−2=16(10x+2x)⇒x=2⇒y=4 

∴Number =24

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There is a number consisting of two digits, the digit in the units place is twice that in the tens place and if 2 be subtracted from the sum of the digits, the difference is equal to 1/6 th of the number. The number is