The difference between two number is 5 and the difference between their squares 65. What is the larger number?
Created: 6 years ago |
Updated: 3 years ago
best des
ধরি, সংখ্যা দুটি x ও y
x - y = 5
এবং, x2 - y2 = 65
( x + y) ( x - y) = 65
x + y = 65/5
x + y = 13
বড় সংখ্যাটি = ( x + y) + ( x - y)/2 = 13 + 5/2 = 9
Md Azizur Rahman
Founder of Satt
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