The boys and girls in a school are in th...

The boys and girls in a school are in the ratio 8 : 3 . If the number of girls is 405 ,how many boys are there in the school

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The correct Answer is:

1080

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ICSE-RATIO AND PROPORTION-Exercise 7 A

The angles of a triangle are in the ratio 5 : 6 : 7 . Find each angle...
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A line segment of length 84 cm has been divide into two parts in the ...
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Divide ₹ 3900 between Kunal and Kirti in the ratio 15 : 11
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Divide ₹ 16250 among A, B, C in the ratio 5 : 7 : 13
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Divide 35 sweets Sudha and Tanvy in the ratio (1)/(2) : (1)/(3)
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Divide 468 g of rice into three heaps containing the quantities in th...
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Divide ₹ 715 among A, B, C in such a way that B gets three times as mu...
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Divide ₹ 760 among A, B, C such that A gets (5)/(6) of what B gets an...
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The boys and girls in a school are in the ratio 8 : 3 . If the number ...
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An alloy contains copper and zinc in the ratio 7 : 3 . If it contains...
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Reena weighed 63 kg. She reduced her weight in the ratio 9 : 8 . Find ...
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Two numbers are in the ratio 9 : 13 and their sum is 176 . Find the nu...
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Two numbers are in the ratio 5 : 8 and their difference is 12 . find t...
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If a : b = 3 : 2 and b : c = 4 : 5 , find a : c
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If a : b = 5 : 6 and b : c = 2 . 8 : 3.5 , find a : c
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If p : q = 1(1)/(3) : 1(1)/(2) and q : r = (1)/(2) : (1)/(3) , find p ...
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If a : b = 3 : 4 and b : c = 8 : 9, find a : b : c
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If l : m = 2 (1)/(2) : 1(2)/(3) and m : n = 1 (1)/(4) : 3 (1)/(2) , fi...
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Which ratio is greater ? (3 : 4) or (5 : 7)
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Which ratio is greater ? (11 : 21) or (19 : 28)
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