Subject :IMO Class : Class 8
If A : B = 2 : 3 and B : C = 4 : 5, then C : A is equal to ____.
A 15 : 8
B 12 : 10
C 8 : 5
D 8 : 15
Subject :IMO Class : Class 1
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Subject :IMO Class : Class 6
÷ 3 [17 + 3 × 4 - (2 × 7)] + 20 - 2(5 - 4) × {3 - (5 - 3)}.
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Subject :IMO Class : Class 5
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Subject :IMO Class : Class 4
Ans 1:
Class : Class 4
630 #firstanswer
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Subject :IMO Class : Class 5
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Subject :IMO Class : Class 4
Ans 1:
Class : Class 4
c is the answer
Ans 2:
Class : Class 5
????
Ans 3:
Class : Class 5
yttyug
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Subject :IMO Class : Class 4
Ans 1:
Class : Class 4
A is the answer # firstanswer
Ans 2:
Class : Class 7
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Subject :IMO Class : Class 3
Ans 1:
Class : Class 3
32
Ans 2:
Class : Class 3
d 43
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Subject :IMO Class : Class 7
and add the result in addition of 
