Ask a New Question

30% of the pupils in a class are boys.there are 21 girls.how many pupils are there in the class in all?

1 answer

.7 x = 21
x = 21/.7 = 30

Ask a New Question or answer this question.

Similar Questions

There is a school of 1,200 pupils. 3/5 of them are girls.A. What fractions are boys? B. How many pupils are girls? C. How many
1. 2 answers
In a class 42 pupils, 4 boys and 3 girls are absent. What fraction of the pupils is present?
1. 1 answer
54% of the pupils in a class are girls. what % of pupils are boys? if the number of boys are 23. find the strength of the class.
1. 1 answer
If 30% of pupils in a class are boys how many percent pupils are girls
1. 4 answers

more similar questions