Q: If four whole numbers taken at random are multiplied together, then the chance that the last digit in the product is 1, 3, 7 or 9 is यदि चार पूर्ण संख्याओं को एक साथ लेकर उन्हें आपस में गुणा कर दिया जाय तो इसकी प्रायिकता क्या होगी कि उनके अन्त के अंक 1, 3, 7 या 9 होंगे:
A.
B.
C.
D.
Correct Answer:
Option B -
Explanations:
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