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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

On his first 3 tests, Rajeev received an average score of N points. If on his fourth test, he exceeds his previous average score by 20 points, what is his average score for his first 4 tests?

A. N
B. \(N+4\)
C. \(N+5\)
D. \(N+20\)
Explanation: