In a class of $38$ boys, $3$ were absent. $20 %$ of the rest did not complete their homework. How many boys have completed their homework?

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Solution

$38 b o y s 3, w e r e a b s e n t \Rightarrow \frac{20}{100} \times 35 = 7 35 s t u d e n t a r e p r e s e n t (3 + 7) b o y s n o t c o m p l e t e d t h e i r e w o r k (10) (35 - 10) b o y s c o m p l e t e d t h e i r e w o r k (25)$

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In a class of 38 boys, 3 were absent. 20% of the rest did not complete their homework. How many boys have completed their homework?

38boys3,wereabsent⇒20100×35=735studentarepresent(3+7)boysnotcompletedtheirework(10)(35−10)boyscompletedtheirework(25)

In a class of $38$ boys, $3$ were absent. $20 %$ of the rest did not complete their homework. How many boys have completed their homework?

$38 b o y s 3, w e r e a b s e n t \Rightarrow \frac{20}{100} \times 35 = 7 35 s t u d e n t a r e p r e s e n t (3 + 7) b o y s n o t c o m p l e t e d t h e i r e w o r k (10) (35 - 10) b o y s c o m p l e t e d t h e i r e w o r k (25)$