GRE Counting and Probability: Practice Question of the Week
Here’s this practice questionHow many integers between 1 and 10^21 are such that the sum of their digits is 2?
a)190
b)210
c)211
d)230
e)231
GRE Practice Question : Counting and Probability
Here’s this practice questionHow many integers between 1 and 10^21 are such that the sum of their digits is 2?
a)190
b)210
c)211
d)230
e)231
0 comments :
Post a Comment