Which among the following is the longest river which flows through Pakistan and northern india?
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Satluj
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Brahmaputra
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Tapti
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Sangam
A
Correct answer
Explanation
Satluj is a major tributary of the Indus system and flows through both India (Himachal Pradesh, Punjab) and Pakistan (Punjab province). Brahmaputra flows through India (Assam) and Bangladesh, not Pakistan. Tapti is entirely within India. 'Sangam' is not a major river but refers to confluences. Among the given options, Satluj is the correct answer for a river flowing through Pakistan and northern India.