3251 + 587 + 369 – ? = 3007
3251 + 587 + 369 – ? = 3007
[A].
[B].
[C].
[D].
Answer: Option D
Explanation:
 3251          Let 4207 – x = 3007
+ 587          Then,  x = 4207 – 3007 = 1200
+ 369
 —-
 4207
 —-
[B].
[C].
[D].
Answer: Option C
Explanation:
Let A = 2k, B = 3k and C = 5k.
| A’s new salary = | 115 | of 2k = | 115 | x 2k | = | 23k | ||
| 100 | 100 | 10 | 
| B’s new salary = | 110 | of 3k = | 110 | x 3k | = | 33k | ||
| 100 | 100 | 10 | 
| C’s new salary = | 120 | of 5k = | 120 | x 5k | = 6k | ||
| 100 | 100 | 
| New ratio | 23k | : | 33k | : 6k | = 23 : 33 : 60 | ||
| 10 | 10 | 
[B].
[C].
[D].
Answer: Option C
Explanation:
Each of the numbers except 14 is an odd number.
The number ’14’ is the only EVEN number.
[B].
[C].
[D].
Answer: Option C
Explanation:
2(15 + 12) x h = 2(15 x 12)
| h = | 180 | m = | 20 | m. | 
| 27 | 3 | 
| Volume = | 15 x 12 x | 20 | m3 | = 1200 m3. | |
| 3 | 
Video Explanation: https://youtu.be/V8EQ1YIaH74
| 4 | 4 | % | 
| 7 | 
[B].
| 5 | 5 | % | 
| 11 | 
[C].
[D].
Answer: Option B
Explanation:
Cost Price (C.P.) = Rs. (4700 + 800) = Rs. 5500.
Selling Price (S.P.) = Rs. 5800.
Gain = (S.P.) – (C.P.) = Rs.(5800 – 5500) = Rs. 300.
| Gain % = | 300 | x 100 | % | = 5 | 5 | % | |
| 5500 | 11 | 
		A. 4km
B. 6 km
C. 8 km
D. 12 km
Explanation:
Speed downstream = (9+3) km/hr = 12km/hr
Speed upstream = (9-3) km/hr = 6 km/hr
Distance AB = x km
 x/6 + x/12 = 3
=> 2x + x = 36
=> x= 12
[B].
[C].
[D].
Answer: Option C
Explanation:
45 = 5 x 9, where 5 and 9 are co-primes.
Unit digit must be 0 or 5 and sum of digits must be divisible by 9.
Among given numbers, such number is 202860.