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Subject :IMO    Class : Class 5

I think of a decimal number. After I have subtracted 2.9 from it, multiplied the result by 3 and then added 0.15, I get 10.5. What decimal number I am thinking of?

A 4.5
B 15.66
C 20.10
D None of these


Ans 1:

Class : Class 9
d - none of these

Ans 2:

Class : Class 4
d

Ans 3:

Class : Class 6
D

Ans 4: (Master Answer)

Class : Class 1
Kindly mention your query

Ans 5:

Class : Class 9
d - none of these

Ans 6:

Class : Class 5

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