Math, asked by MrsIslammolla, 9 months ago

23, 30, 57 এবং 78 -এর প্রত্যেকটি থেকে কত বিয়ােগ করলে বিয়ােগফলগুলি সমানুপাতী হবে নির্ণয় করি।​

Answers

Answered by PeepingMoon
6

Answer:

let x be subtracted from 23 , 30 , 57 & 78

so ( 23 - x ) , ( 30 - x ) , ( 57 - x ) & ( 78 - x ) are in proportion

We know that

( 23 -x )( 57 - x ) = ( 30 - x )( 78 - x )

》1311- 23x - 57x = 2340 - 78x - 30x

》 2340 - 1311 = - 80x + 108 x

》 929 = 38x

》 x = 929/38

Step-by-step explanation:

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