Question

On a shelf, 2 different books of geology, 2 different books of sociology and 5 different books of economics are to be arranged so that the books of any subject are to be together. In how many ways can this be done

Answer 1

Answer:

6

Step-by-step explanation:

Let the books of, Geology be G

Sociology be S

Economics be E

Hence,

the possible ways are:

GSE, GES, SEG, SGE, EGS, ESG

i.e. 6 different ways