In a town consisting of three localities...

In a town consisting of three localities X. Y and Z. the population of the three localities X, Y and Z are in the ratio 9: 8: 3. In locality X, 80% of the people are literate, in locality Y, 30% of the people are illiterate. If 90% people in locality Z are literate, find the percentage literacy in that town.

0.75

0.78

0.615

None of these

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