Answered

There are 50 pupils in a Grade 4 class. 2/5 of the class come to school through public transportation,3/10 come into school buses,and the rest walk to school.How many pupils take a public transportation? Come in school buses? Walk to school?

Sagot :

KookEinid
20 = public transportation
15 = school buses
15 = walks to school

- Get the 2/5 of 50 to get the number of those who use public transportation.
     (2)(50)/5 = 100/5 = 20

- Get the 3/10 of 50.
     (3)(50)/10 = 15

- Add the number of those who uses public transportation and school buses.
     20 + 15 = 35

- Subtract its sum by 50 to get those who walk to school.
     50 - 35 = 15
 
                                                                                -KookEin