12. 10% of 90 is n. The value of n is 15., True, False, 13. 25% of 275 is 68.75 , True, False, 14. n% of 670 is 302. The value of n is 46. , True, False, 15. n% of 680 is 156.4. The value of n is 23. , True, False, 16. Seventy percent of three hundred sixty is two hundred fifty-two. , True, False, 17. Ten percent of five hundred twelve is fifty-one point two. , True, False , 18. Thirty percent of 602 is 180. , True, False, 19. Twenty-two percent of 784 is 172 , True, False, 20. Eighty percent of four hundred sixty is two hundred. , True, False