Question

pls answer this question with steps and working it would be a gr8 help❤❤❤

Answer 1

21 students were left in class.

explaination:
GIVEN:
total students = 42.
SOLUTION:
among 42 students 2/7 the were absent.
= (42×2)/7 = 12
therefore 42-12 = 30 students were present.

now among these 30 students 1/5 went for school competition.
= 30/5 = 6
therefore 30- 6 = 24 students were present in class.

now among these 24 students 1/8 went on field to play.
= 24/8 = 3
therefore 24-3 = 21

therefore in total only 21 students were left in class.
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