i what percent of 72 is 6 ii 7 84 iii, Percentage, General Mathematics

Question:(i) What percent of 72 is 6 ?
(ii) What percent of 7 is 84 ?
(iii) What percent of 2.4 kg is 8 gms ?
(iv) What percent of 6.5 litres is 130 ml ?

Answer (i) Required percentage = `(6/72 xx 100)`% = `8 1/3`%.

(ii) Required percentage = `(84/7 xx 100)`% = 1200%.

(iii) Required percentage = `(8/(2.4 xx 1000) xx 100)`% = `1/3`%.

(iv) Required percentage = `(130/(6.5 xx 1000) xx 100)`% = 2%.

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+ ExplanationNot ModeratedTWO IMPORTANT RULES (Short Cut Methods) :

(i) If A is R% more than B, then :

B is less than A by`{R/(100 + R) xx 100}`%.

(ii) If A is R% less than B, then

B is more than A by `{R/(100 - R) xx 100}`%

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(i) What percent of 72 is 6 ? (ii) What percent of 7 is 84 ? (iii) What percent of 2.4 kg is 8 gms ? (iv) What percent of 6.5 litres is 130 ml ?

Question:(i) What percent of 72 is 6 ? (ii) What percent of 7 is 84 ? (iii) What percent of 2.4 kg is 8 gms ? (iv) What percent of 6.5 litres is 130 ml ?

Answer (i) Required percentage = `(6/72 xx 100)`% = `8 1/3`%. (ii) Required percentage = `(84/7 xx 100)`% = 1200%. (iii) Required percentage = `(8/(2.4 xx 1000) xx 100)`% = `1/3`%. (iv) Required percentage = `(130/(6.5 xx 1000) xx 100)`% = 2%.