Question

1. 3:6= _:30:_ ?
2. Write an equivalent ratio of 4:5 .
3. Express percentage of $\frac{3}{5}$ .
4. What is fraction of 15%?
5. 4% of 25 yen/dollar = _ ?
6. Write 2 similar terms of $7x^3y$ .
7. What is the coefficient of c in ab-c?
8. What is the index of x in $3x^3 *x^4$?
9. $x^2+x^2-(2x^2+2y^2)$ =?

Answer 1

Answer:

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Answer 2

Answer:

We will follow the following steps for converting a ratio into a percentage:

Step I: Obtain the ratio. Let the ratio be x : y

Step II: Convert the given ratio into the fraction x/y.

Step III: Multiply the fraction obtained in step II by 100 and put the percentage sign(%).

1. Express each of the following ratio into percentage:

(i) 6 : 5 = 6/5 = (6/5 × 100) % = 600/5 % = 120 %

(ii) 8 : 25 = 8/25 = (8/25 × 100) % = 32 %

(iii) 10 : 50 = 10/50 = (1/5 × 100) % = 20 %

(iv) 4 : 5 = 4/5 = (4/5 × 100) % = 80 %

(v) 7 : 25 = 7/25 = (7/25 × 100) % = 28 %