Vishwanath
Monday, February 18, 2013
21. | If 3(x-y)= 27 and 3(x+y)=243, then x is equal to |
| A. 0 | B. 2 | |
| C. 4 | D. 6 | |
22. | If 5a = 3125, then the value of 5(a - 3) is: |
A. | 25 | B. | 125 | C. | 625 | D. | 1625 | |
23. | If ax =b, by= c and cz= a, then the value of xyz is |
| A. 0 | B. 1 | |
| C. 1/abc | D. abc | |
24. (1/216)-2/3 ÷ (1/27)-4/3 = ?
a. 3/4
b. 2/3
c. 4/9
d. 1/8
View Answer With Explanation
25.
|
49× 49× 49× 49 = ?
|
| A. 4 | B. 7 | |
| C. 8 | D. 16 | |
View Answer With Explanation
26. |
If 2x = 3√32, then x is equal to
|
| A. 5 | B. 3 | |
| C. 3/5 | D. 5/3 | |
27. | If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:
|
|
28. | (0.04)-1.5 = ? |
| A. 25 | B. 125
| |
| C. 250 | D. 625 | |
29. If 5√5 * 53 ÷ 5-3/2 = 5a+2 , the value of a is:
a. 4
b. 5
c.6
d. 8
View Answer With Explanation
30. If √2n =64, then the value of n is:
a. 2
b. 4
c. 6
d. 12
View Answer With Explanation
Title : Surds And Indices Practice Test 3
Description : 21. If 3 ( x-y ) = 27 and 3( x+y )=243, then x is equal to A. 0 B. 2 C. 4 D. 6 View Answer With Explanation ...
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