DSSSB · Mathematics
The marks of a student were mistakenly recorded as 59 instead of 89. Due to this the average marks of the class reduced by 3/2. What is the number of students in the class?
- 20
- 30
- 14
- 17
एक विद्यार्थी के अंक गलती से 89 के बजाय 59 दर्ज कर दिए गए। इसके कारण कक्षा के औसत अंक 3/2 कम हो गए। कक्षा में विद्यार्थियों की संख्या कितनी है?
- 20
- 30
- 14
- 17
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