Interview Maths Puzzle Numerical Ability

What does the hexanumber E78 in radix 7 ?
a) 12455
b) 14153
c) 14256
d) 13541
e) 131112

Read Solution (Total 1)

d
1st change the hexadecimal number into decimal then apply successive divison method with 7
9 years agoHelpfull: Yes(0) No(1)

Interview Other Question

What does the hexanumber E78 in radix 7?
a) 12455
b) 14153
c) 14256
d) 13541
e) 131112

A set of consecutive natural numbers beginning with 1 is written on the board. A student came along and wrote one of these numbers one more time and found the average of the numbers written on the board as 40 20/27(mixed fraction). What was the number that was written twice on the board?
A)20
B)21
C)30
D)60