alleryअन्य तीनों से भिन्न, कौन-सी संख्या विषम है: 18, 26, 40, 57?
A18
B26
C40
D57
Answer & Solution
Correct answer: D. 57
57 का इकाई अंक 7 है, इसलिए यह 2 से विभाज्य नहीं है, जबकि 18, 26 और 40 सभी सम संख्याएँ हैं।
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