Question

When 20 is subtracted from a number and then divide by 15 then the quotient is 40 find out the original value? *

Answer 1

Answer:

The answer is 620 bro

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Answer 2

Step-by-step explanation:

When 9 is subtracted from a number and then divided by 2, the answer is 4. What is the number?

Answer

41

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S. S. Agarwal

, Math Competition Problems, Most Viewed Writer - Quora

Answered March 15, 2019

Ans. Let's assume the required number be X and X-9 be Y.

So equation should be,

First equation, X - 9 =Y

Second equation, Y / 2 = 4

By solving the second equation we get,

Y = 4×2

Y = 8

Now putting the value of Y in first equation, we get

X - 9 = Y

X = 8 +9 [putting Y = 8]

X = 17.