Pavan
from
Kendriya Vidalaya DRDO, Bengaluru

Subject :IMO Class : Class 4

think of a number multiply by 2.subtract 10.multiply 5.the result is 100 .what is the number?

## Ans 1:

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## Ans 3:

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mohanananda
from
delhipublicschool, Dhanbad

Class : Class 8

do the opposite calculations.
100/5=20
20+10=30
30/2=15