A. 13 B. 10 C. 9 D. 8 E. 7
11.
If five digits 1, 2, 3, 4, 5 are being given and a three digit code has to
be made from it if the repetition of digits is allowed then how many such
codes can be formed.
A 120 B 100 C 125 D 150 E 90
12. The product of all the prime numbers less than 20 is closest to which
of the following powers of 10?
A 10
9
B 10
8
C 10
7
D 10
6
E10
5
13. Each * in the mileage table above represents an entry indicating the
distance between a pair of the five cities. If the table were extended to
represent the distances between all pairs of 30 cities and each distance
were to be represented by only one entry, how many entries would the
table then have?
Do'stlaringiz bilan baham: |