Question

Percentage
S.
(1) 45% of a number is 216. Find the number.
(ii) If 12 - % of a weight is 16 kg, find the weight
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Answer 1

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(i) Let the no.be x.

• 45/100×x=216

• 45x/100=216

• 45x=216 × 100

• x = 216 ×100 /45

• x = 480

(ii) Let the no. be x

• 12/100 × x = 16

• 12x = 16 ×100

• x = 16 ×100/12

• x = 400 / 3 kg

Answer 2

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(i) Let the no.be x.

45/100×x=216

45x/100=216

45x=216 × 100

x = 216 ×100 /45

x = 480

(ii) Let the no. be x

12/100 × x = 16

12x = 16 ×100

x = 16 ×100/12

x = 400 / 3 kg