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Mathematics, 14.12.2021 14:00 moorealexis819owh9lb
ए और बी एक काम को क्रमशः 20 एवं 30 दिनों में अलग - अलग पूरा करते हैं। यदि दोनों एक साथ मिलकर काम करते हैं तो दोनों द्वारा दिनों में कितना हिस्सा करेंगे । कितना दिनों ma
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ए और बी एक काम को क्रमशः 20 एवं 30 दिनों में अलग - अलग पूरा करते हैं। यदि दोनों एक साथ मिलकर काम करत...
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