Question

Q7)Find the value of x if 30% of 140= x% of 840 *
3 po
O A) 3
O B) 5
A
O 0)4
D) 6​

Answer 1

X =5

Step-by-step explanation:

$\frac{30 \times 140}{100} = \frac{x \times 840}{100}$

$4200 = 840x$

$\frac{4200}{840} = x$

$x = 5$

Answer 2

Answer:

first 30% of 140

that will be 30/100 × 140 (1)equation...

that will be 4.2

and x% of 180 will be

x/100 × 180

that will be 18x/10 (2)equation...

now given that (1) and (2) equation.. are equal

that will be 4.2 = 18x/10

soo 18x = 4.2 ×10

18x = 42

x = 42/18

x = 2.33 answer

hope it helps

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