The marks obtained by 10 students of a class are 46, 51, 62, 70 , 35 x 50, 83, 65, 52 if the average marks is 55 find x
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2
Answer:
36
Step-by-step explanation:
( 46+ 51+ 62+ 70+ 35+ x+ 50+ 83+ 65+ 52 ) ÷ 10 = 55
( 514+ x) ÷ 10 = 55
514 + x = 550
x = 550 - 514
x = 36
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