alleryहें नांव. 48 विद्यार्थ्यां मदीं चले सरासरी 64, चलयो 76, सगळे 69 गूण मेळटात. चलयांची संख्या?
A28
B18
C16
D20
Answer & Solution
Correct answer: D. 20
हें .
g ही चलयांची संख्या आसल्यार 64(48 − g) + 76g = 69 × 48 g = 20 मेळटा.
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