1. | (17)3.5 x (17)? = 178 | |||||||
Answer: Option D Explanation:
Let (17)3.5 x (17)x = 178. Then, (17)3.5 + x = 178.
|
3. | Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to: | ||||||||||||||
Answer: Option C Explanation:
xz = y2
|
4. | If 5a = 3125, then the value of 5(a – 3) is: | |||||||
Answer: Option A Explanation:
5a = 3125
|
5. | If 3(x – y) = 27 and 3(x + y) = 243, then x is equal to: | |||||||
Answer: Option C Explanation:
3x – y = 27 = 33 3x + y = 243 = 35 On solving (i) and (ii), we get x = 4. |