Math, asked by faisalnalkath48, 10 months ago

Average of mask donated by 50 students is 30. when the class teacher donated mask, then average increased by 1. how many mask donated by class teacher?

Answers

Answered by delhiddl

3

Answer:

50

Step-by-step explanation:

x/50 = 30

x = 1500

y/50 = 31

y = 31*50 = 1550

Y-X = 50

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