25, 36, 49, 81, 121, 169, 225
25, 36, 49, 81, 121, 169, 225
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
The numbers are squares of odd natural numbers, starting from 5 up to 15.
So, 36 is wrong.
[B].
[C].
[D].
Answer: Option A
Explanation:
The numbers are squares of odd natural numbers, starting from 5 up to 15.
So, 36 is wrong.
[B].
[C].
[D].
Answer: Option A
Explanation:
 19657         Let x – 53651  = 9999
 33994         Then, x = 9999 + 53651 = 63650
 —–
 53651
 —–
[B].
[C].
[D].
Answer: Option B
Explanation:
By investing Rs. 1552, income = Rs. 128.
| By investing Rs. 97, income = Rs. | 128 | x 97 | = Rs. 8. | ||
| 1552 | 
Dividend = 8%
[B].
[C].
[D].
Answer: Option C
Explanation:
The terms are successively divided by 12, 10, 8, 6, …etc.
So, 24 is wrong, it should be 8 (48/6 = 8).
		A. Rs. 9000.30
B. Rs. 9720
C. Rs. 10123.20
D. Rs. 10483.20
Explanation:
Amount = [25000 * (1 + 12/100)3]
= 25000 * 28/25 * 28/25 * 28/25 = Rs. 35123.20
C.I. = (35123.20 – 25000) = Rs. 10123.20
[B].
| 23 | 2 | m | 
| 9 | 
[C].
| 27 | 7 | m | 
| 9 | 
[D].
Answer: Option C
Explanation:
| Relative speed = (40 – 20) km/hr = | 20 x | 5 | m/sec = | 50 | m/sec. | ||||
| 18 | 9 | 
| Length of faster train = | 50 | x 5 | m = | 250 | m = 27 | 7 | m. | ||
| 9 | 9 | 9 | 
[B].
[C].
[D].
Answer: Option B
Explanation:
The word ‘OPTICAL’ contains 7 different letters.
When the vowels OIA are always together, they can be supposed to form one letter.
Then, we have to arrange the letters PTCL (OIA).
Now, 5 letters can be arranged in 5! = 120 ways.
The vowels (OIA) can be arranged among themselves in 3! = 6 ways.
Required number of ways = (120 x 6) = 720.