alleryएक पुरुष 3 लड़कों के बराबर कार्य करता है। 2 पुरुष और 6 लड़के मिलकर किसी कार्य को 9 दिनों में पूरा करते हैं। 12 लड़कों को यह कार्य पूरा करने में कितना समय लगेगा?
A6 दिन
B9 दिन
C18 दिन
D12 दिन
Answer & Solution
Correct answer: B. 9 दिन
2 पुरुष 6 लड़कों के बराबर हैं, इसलिए यह समूह कुल 12 लड़कों के बराबर है, अतः उन्हें भी 9 दिन लगेंगे।
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