Question

Set 2 Maths has 30 pupils in it.

Set 1 Maths has 80% of the number of pupils in Set 2
How many pupils does Set 1 Maths have?

Answer 1

Set 1 Maths has 24 pupils, calculated by taking 80% of the 30 pupils in Set 2 Maths.

Step-by-step explanation:

To determine how many pupils Set 1 Maths has, we need to calculate 80% of the number of pupils in Set 2 Maths. Set 2 Maths has 30 pupils. Therefore, to find 80% of 30, one way is to set up equivalent fractions with one of the fractions having 100 as the denominator, then cross-multiply and solve for the unknown. Alternatively, we can simply multiply 30 by 0.80 (since 80% as a decimal is 0.80).

The calculation would be:

• Number of pupils in Set 1 = 80% of 30 = 0.80 × 30 = 24 pupils.

So, there are 24 pupils in Set 1 Maths.

Answer 2

80/100 x 30 = 24 because you just multiply percents