[B].
[C].
[D].
Answer: Option D
Explanation:
The differences between two successive terms from the beginning are 7, 5, 7, 5, 7, 5.
So, 40 is wrong.
[B].
[C].
[D].
Answer: Option B
Explanation:
Each number is a composite number except 11.
A. 1 Year
B. 2 years
C. 3 Years
D. 4 Years
Explanation:
Time be t years 882 = 800 (1 +5/100) t
=> 882/800 =(21/20) t
(21/20) 2 = (21/20) t
=> t = 2 Therefore,
Time = 2 years
[B].
[C].
[D].
Answer: Option B
Explanation:
Marking (/) those which are are divisible by 3 by not by 9 and the others by (X), by taking the sum of digits, we get:s
2133 9 (X)
2343 12 (/)
3474 18 (X)
4131 9 (X)
5286 21 (/)
5340 12 (/)
6336 18 (X)
7347 21 (/)
8115 15 (/)
9276 24 (/)
Required number of numbers = 6.
[B].
[C].
[D].
Answer: Option B
Explanation:
1 hectare = 10,000 m2
So, Area = (1.5 x 10000) m2 = 15000 m2.
| Depth = | 5 | m | = | 1 | m. |
| 100 | 20 |
| Volume = (Area x Depth) = | 15000 x | 1 | m3 | = 750 m3. | |
| 20 |
Video Explanation: https://youtu.be/dDbVuBzYop8
A. 2km/hr
B. 2.8 km/hr
C. 4 km/hr
D. 4.2 km/hr
E. None of these
Explanation:
Speed downstream = 24/10 km/hr = 2.4 km/hr
Speed upstream = 24/12 km/hr = 2 km/hr
Speed of the boat in still water = ½ (2.4 +2)km/hr = 2.2 km/hr
[B].
[C].
[D].
Answer: Option D
Explanation:
| Given Exp. | = a2 + b2 – 2ab, where a = 287 and b = 269 |
| = (a – b)2 = (287 – 269)2 | |
| = (182) | |
| = 324 |