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Ques.1=5:2,15:8,20:12
Ques.2=ratio of boys to girls=4:3
No.of boys=24
No.of girls=x
24/x=4/3
24×3=4×x
72=4x
x=72/4
x=18
No. of girls=18
Ques.3=Total no. of students=35
No.of boys and girls=?
Ratio of boys and girls =4:3
No. of boys=4x
No.of girls=3x
Total no. of students=35
4x+3x=35
7x=35
x=35/7
x=5
No.of boys=4x=4×5=20.
No. of girls=3x=3×5=15
Ques.4=Cost of 12oranges=60
Cost of 1oranges=60/12
cost of 1orange=5
Cost of 8 oranges=48
Cost of 1 orange=48/8
cost of 1orange=6
12 oranges for 60 is better price for buyer.
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