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Vishnu from The pupil saveetha eco school, Chennai
Subject :IMO    Class : Class 3

How many four digit numbers can be formed, using digits 8, 4, 0, 7 each digit used only once?

A18
B24
C16
D12


Ans 1:

Shubham Singh from Rockwoods High School, Udaipur
Class : Class 5
because of 0 at first position, 6 possibilities are reduced from 24. so it is 18

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

The correct answer is A - 18


Ans 3:

Girish Garg from Delhi public school, Bathinda
Class : Class 3
A,18 is correct answer

Ans 4:

Navni Dasgupta from Rcis, Bangalore
Class : Class 7

Ans 5:

Shubham Singh from Rockwoods High School, Udaipur
Class : Class 5
24

Ans 6:

saanvi from dpsnoida, Noida
Class : Class 6

Ans 7:

Navni Dasgupta from Rcis, Bangalore
Class : Class 7
a- 18

Ans 8:

PnP from Vibgyor, Bengalore
Class : Class 6
Option a answer 18 is correct the rest are false options because os zero. Zero cannot come in thousands that s why it cannot be 24.

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