Numbers Basics 1/2



7.  The largest number of four digits exactly divisible by 77 is
a.   9768
b.  9933
c.  9988
d.  9944


8. The number of digits used to write first 1000 natural numbers is
a. 1000
b. 2593
c. 2893
d. 2899


9.  How many natural numbers starting from 1 can be written using 2019 digits?
a.  709
b.  710
c.  711
d.  712


10.  How many numbers from $1$ to $700$ does not contain digit $3$?
a.   486
b.   488
c.   472
d.   476


11.  How many numbers from $1$ to $700$ contain digit $3$?
a.   208
b.   214
c.   215
d.   220


12.  How many digit $3's$ are used while typing numbers from $1$ to $700$
a.   220
b.   240
c.   260
d.   280