User Forum

Subject :IMO    Class : Class 4

Think of a number. Multiply it by 12. Add 6. Multiply by 3. Subtract 9. Divide by 11. The result is 27. What is the number?

A 4
B 40
C 8
D 5


Ans 1:

Class : Class 3
The number obtained after all the said operations is 27. Lets start from the end and perform reverse operations.as follows. multiply 27 by 11 you will get 297. Now add 9 to the result you will get 306. Now divide by 3 , its 102 now .now subtract 6 it becomes 96 now divide by 12 answer is 8. Enjoy Eknoor Grade 4 DPS,Patiala

Post Your Answer