Question

Two fifth of a number subtracted from three fourth that number gives 14. What is a number

Answer 1

Let the number be x

(2/5)x - (3/4)x = 14

[(8-15)/20]x = 14

[-7/20]x = 14

x = 14*20/(-7) = -40

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Answer 2

ANSWER:

x = -40

EXPLANATION:

Let us take the number to be x,

Therefore we get,

2x - 3x  = 14   (taking LCM, LCM = 20)

5×4  4×5

Solving the equation, we get,

8x - 15x  = 14

    20

-7x = 14

20

-7x = 14 × 20

x = 280 = 40

       -7       -1

So, therefore x = -40

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