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THE AVERAGE AGE OF 10 STUDENTS IN A GROUP INCREASE...
THE AVERAGE AGE OF 10 STUDENTS IN A GROUP INCREASES BY 0.4 YEARS W...
BANK EXAM MODEL QUESTION PAPERSANS
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48. The average age of 10 students in a group increases by 0.4 years when a girl of age 6 years is replaced by another girl. The age of the new girl is
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48.
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BANK EXAM MODEL QUESTION PAPERSANS