Question

find the whole quantity of​

Answer 1

Answer:

5%of it is 750

then,

50% of it would be..

750×10 = 7500

and double of these.

means 50+50=100

7500+7500= 15000

therefore, 100%of 750 is 15000

Answer 2

(a) 9000

(b) 15000

(c) 600 litres

(d) 20 minutes

Step-by-step explanation:

let the whole quantity be x.

(a)

$13\% \: of \: x = \: 1170 \\ = > \frac{13}{100} \times x = 1170 \\ = > x = 1170 \times \frac{100}{13} \\ = > x = 90 \times 100 \\ = > x = 9000(required \: answer)$

(b)

$5\% \: of \: x \: = 750 \\ = > \frac{5}{100} \times x = 750 \\ = > x = 750 \times \frac{100}{5} \\ = > x = 150 \times 100 \\ = > x = 15000(required \:answer )$

(c)

$8\% \: of \: x = 48 \: l \\ = > \frac{8}{100} \times x = 48 \\ = > x = 48 \times \frac{100}{8} \\ = > x = 6 \times 100 \\ = > x = 600 \: l$

(d)

$80\% \: of \: x \: = 16 \: min \\ = > \frac{80}{100} \times x = 16 \\ = > x = 16 \times \frac{100}{80} \\ = > x = 20 \: min$