IKMC 2022 - Grades 5-6 - Set 2 - Self-study Question 28

Question 28

Villages A, B, C and D lie in that order on one road, 10 km apart. They have 10, 20, 30 and 40 students respectively. Where should a school be built to minimise the total distance the students travel?

in A
in B
midway between B and C
in C
in D