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SUSHIL PANT from ,

Subject :IMO Class : Class 6

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

A 118
B 128
C 132
D 140

how come the correct ans is B, Just wanted to know

Ans 1:

abhinav from fitjee world school, Hyderabad

5x+9x=448 14x=448 x=448/14=32 9x-5x=y 4x=y 4*32=y 128=y