alleryایک قدر دو سلاخوں کے درمیان 250 سے 200 تک جاتی ہے۔ فیصد کمی کیا ہے؟
A15 فیصد
B20 فیصد
C25 فیصد
D50 فیصد
Answer & Solution
Correct answer: B. 20 فیصد
زوال 250 کی بنیاد پر 50 ہے، جو 20 فیصد ہے۔
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