Question

if 12-5% of Q is 19, the value of Q is ?​

Answer 1

Answer:

18/23

Step-by-step explanation:

12-5%of Q= 9

(12-5)% * Q= 9

(12- 5/100)*Q=9

(12- 1/2)* Q=9

We should bring the same denominator, then subtract and transverse and find..

12/1*2/2

24/2. so now

24/2-1/2= 23/2

23/2*Q=9

23Q/2=9

Now transverse 2 and we will get:

23Q= 9*2

23Q=18.

Now transverse 23 and we will get:

Q= 18/23...

Solved..

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Answer 2

Answer:

271.42 (approximately)

Step-by-step explanation:

Soln:

12-5% of Q is 19

therefore,

7% of Q is 19

that is,

(7 ÷ 100)Q = 19

0.07Q = 19

Q = 19 ÷ 0.07

Q = 271.42