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1. A third of Karim’s marks is Mathematics exceeds a half of his marks in Social Studies by 30, if Karim got 240 marks in two subjects together, how many marks did he get in Social Studies?

  • A. 88
  • B. 88
  • C. 88
  • D. 88

Answer: Option C

Explanation:

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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