water tank is 2/7th full. Pipe A can fill the tank in 10 minutes and pipe B can empty it in 7
minutes if both the pipes are open, how long will it take to empty or fill the tank completely?
huh koi baat krega bio -,-
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a poem on moon
Explanation:
haa mai karungi baat
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Explanation:
Oye budhu
baat krle...
स्वच्छ स्टेशन, स्वच्छ रेलगाड़ी, स्वच्छ नीर, स्वच्छ परिसर, स्वच्छ सहयोग, स्वच्छ संवाद, स्वच्छ सम्पर्ण, स्वच्छ आहार अभियान की शुरुआत
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