The ratio `3:5` as a percent is (a) 60% (b) 50% (c) 40% (d) 80%

The ratio 3:5 as a percent is 60% (b) 50%40% (d) 80%

2/ 5 as percent is (a) 30% (b) 35% (c) 40% (d) 45%

5/ 4 as a percent is (a) 80% (b) 125% (c) 120% (d) 130%

(5)/(4) as a percent is 80%(b)125%120% (d) 130%

If the cost price of 12 books is equal to the selling price of 8 books. What is the gain per cent? (A) 12% (B) 30% (C ) 40% (D) 50%

If diameter of a circle is increased by 40%, then its area increases by (a) 96% (b) 40% (c) 80% (d) 48%

If diameter of a circle is increased by 40%, then its area increases by (a) 96% (b) 40% (c) 80% (d) 48%

The ratio 5:4 expressed as a percent equals 12.5% b.40% c.80% d.125%

A vendor bought lemons at 6 for a rupee and sold them at 4 for a rupee. His gain% is (a) 50% (b) 40% (c) 33 1/3% (d) 16 2/3%

If the cost price of 120 articles is equal to the selling price of 80 articles, find the profit percent? (A) 33.33% (B) 40% (C) 50% (D) 60%