How many four digit numbers can be formed using the digits 7, 6, 5 and 2 if repetitions are allowed?

The number of four digit numbers can be formed using the digits 7, 6, 5 and 2 = 256

Step-by-step explanation:

Given digits = 7, 6, 5 and 2

If repetition is allowed , we can use Fundamental principal of counting.

By this principal , total four digit numbers can be formed = 4x 4x4 x 4   [∵ choice for each place = 4 ]

= 256

Hence, the number of four digit numbers can be formed using the digits 7, 6, 5 and 2 = 256

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕