A third of Karim's marks in Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in the two subjects together, how many marks did he get in Social Studies ?
A third of Karim's marks in Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in the two subjects together, how many marks did he get in Social Studies ? Correct Answer 88
Hints: ধরি, . math mark = m, social studies = s 1/3 m = 1/2s + 30 এবং, m + s = 240 m = 240 - s তাহলে, 1/3(240 - s) = 1/2 s + 30 80 - s/3 = 1/2 s + 30 1/2s + s/3 = 80 - 30 3S + 2S / 6 = 50 5s = 300 S = 60 এখানে সঠিক উত্তর নাই
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Feb 20, 2025