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Subject :IMO    Class : Class 6

The ratio of two numbers is 5 : 9 and their sum is 448. Find the difference of the numbers.

A118
B128
C132
D140


Ans 1:

Class : Class 6
Answer should be B. 9x+5x=448 14x=448 x=32 9x-5x=4x 4x=4*32=128

Ans 2:

Class : Class 6

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