21). The greatest among the numbers \( \Large \sqrt[4]{2}, \sqrt[5]{3}, \sqrt[10]{6} \ and \ \sqrt[20]{15} \) is
| A). \( \Large \sqrt[20]{15} \) |
| B). \( \Large \sqrt[4]{2} \) |
| C). \( \Large \sqrt[5]{3} \) |
| D). \( \Large \sqrt[10]{6} \) |
|
22). If the fraction \( \Large \frac{a}{b} \) is positive, then which of the following must be true?
| A). a > 0 |
| B). b > 0 |
| C). ab > 0 |
| D). a + b > 0 |
|
23). If 1.5 x = 0.04 y, then find the value \( \Large \left(\frac{y-x}{y + x}\right) \)
| A). \( \Large \frac{730}{77} \) |
| B). \( \Large \frac{73}{77}\) |
| C). \( \Large \frac{73}{770}\) |
| D). \( \Large \frac{703}{77}\) |
|
24). If 0.764y = 1.236x, then what is the value of \( \Large \frac{y - x}{y + x} \)?
| A). 0.764 |
| B). 0.236 |
| C). 2 |
| D). 0.472 |
|
25). Find the HCF of \( \Large \frac{5}{6} \),\( \Large \frac{5}{18} \) and \( \Large \frac{25}{32} \)
| A). 0.052 |
| B). 0.698 |
| C). 0.75 |
| D). Cannot be determined |
|
26). The pair of rational numbers that lies between \( \Large \frac{1}{4} \ and \ \frac{3}{4} \) is
| A). \( \Large \frac{262}{1000},\frac{752}{1000} \) |
| B). \( \Large \frac{24}{100},\frac{74}{100} \) |
| C). \( \Large \frac{9}{40},\frac{31}{40} \) |
| D). \( \Large \frac{252}{1000},\frac{748}{1000} \) |
|
27). How many pieces of 13.2 cm can be cut from a 330 cm long rod?
| A). 25 |
| B). 28 |
| C). 21 |
| D). 35 |
|
28). What is the vlaue of \( \Large 0.007 + 0.00 \bar{7} + 17.\bar{83} + 310.020\bar{2}\)
| A). 327.86638 |
| B). 328.644 |
| C). 327.86683 |
| D). \( \Large 327.866\bar{8} \) |
|
29). Representation of \( \Large 0.2 \bar{341} \) in the form P/q where p and q are integers, \( \Large q \ne 0 \), is
| A). \( \Large \frac{781}{3330} \) |
| B). \( \Large \frac{1171}{4995} \) |
| C). \( \Large \frac{2341}{9990} \) |
| D). \( \Large \frac{2339}{9990} \) |
|
30). If \( \Large 1\frac{2}{3} \div \frac{2}{7} \times \frac{x}{7} = 1\frac{1}{4} \times \frac{2}{3} \div \frac{1}{6} \) then find the value of x
| A). 0.006 |
| B). \( \Large \frac{1}{6} \) |
| C). 0.6 |
| D). 6 |
|
