if only willingly blood donar r 300. nd percentage of blood donar r only 30% in a village than what r total no. of non donar in that village??
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70% of 300=210 these are the non blood donors
jkklig:
No answer is 700.
give proper method to get answer. Nd answer is 700 but I hv problem to get proper calculation method
let the number of people be thousand so 1000-300 is 700
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