If 70% of students in a school are boys and the number of girls is 480, the number of boys is

1320

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1120

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1800

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1400

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Solution

The correct option is B
1120

30% of the students are girls = 480

$\frac{30}{100}$ X = 480

X = 1600

Number of boys = 70% of 1600 = 1120

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Mark (✓) against the correct answer
70% of students in a school are boys. If the number of girls is 240, how many boys are there in the school?

(a) 420
(b) 560
(c) 630
(d) 480

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If 70% of students in a school are boys and the number of girls is 480, the number of boys is

The correct option is B 1120 30% of the students are girls = 480 30100X = 480 X = 1600 Number of boys = 70% of 1600 = 1120

The correct option is B
1120

30% of the students are girls = 480

$\frac{30}{100}$ X = 480

X = 1600

Number of boys = 70% of 1600 = 1120