Question
Match each item given under the column $C_1$ to its correct answer given under the column $C_2.$
Using the digits $1, 2, 3, 4, 5, 6, 7,$ a number of $4$ different digits is formed. Find
Using the digits $1, 2, 3, 4, 5, 6, 7,$ a number of $4$ different digits is formed. Find
|
|
$C_1$
|
$C_2$ | |
| $(a)$ |
how many numbers are formed.
|
$(i)$ | $840$ |
| $(b)$ |
how many numbers are exactly divisible by $2.$
|
$(ii)$ | $200$ |
| $(c)$ |
how many numbers are exactly divisible by $25.$
|
$(iii)$ | $360$ |
| $(d)$ |
how many of these are exactly divisble by $4.$
|
$(iv)$ | $40$ |