Question

the sum of two number is is 1239 20% of one number is equal to 50% of other find the number​

Answer 1

Answer:

Given,

Sum of two number:-1239

AND

20% of one number is equal to 50% of other

number.

So,

Let the first number be 'X'

and,other number is '1239-X'

According to question,

'X'×20%= (1239-X)×50%

》'X'×20/100=(1239-X)×50/100

》'X'×1/5=(1239-X)×1/2

》X/5=(1239-X) /2

》2X=6195-5X (Corresponding multiply)

》2X+5X=6195

》7X=6195

So,X=885

Hence,

One number :- 885

Other number:- 354 (1239-885)

Answer 2

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An Erlenmeyer flask, also known as a conical flask (British English) or a titration flask, is a type of laboratory flask which features a flat bottom, a conical body, and a cylindrical neck. ... A Büchner flask is a common design modification used for filtration under vacuum.

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