3 years ago

If 55% of the students in a school are boys and number of girls is 900. Find the number of boys.

Mathematics

2 answers:

Reil [10]3 years ago

7 0

Answer: 1100 boys

Step-by-step explanation:

45% students are girls

45% girls in number = 900

1% be = 900x45= 20

55% students are boys

55% boys in number= 55x20= 1100 boys

Masteriza [31]3 years ago

7 0

Answer:

1100

Step-by-step explanation:

The whole school population is represented by 100%, thus

number of girls = 100% - 55 = 45% of population

divide 900 by 45 to find 1% then multiply by 55 to find number of boys

number of boys = $\frac{900}{45}$ × 55 = 1100

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