- Home
- General Aptitude
- Simplification
26.
There are two examination rooms A and B. If 10 students are sent from A to B, then the number of students in each room is the same. If 20 candidates are sent from B to A, then the number of students in A is double the number of students in B. The number of students in room A is:
- A.20
- C.100
- B.80
- D.200
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
| Let the number of students in rooms A and B be x and y respectively. Then, | ||||||
|
||||||
| Solving (i) and (ii), we get : x = 100, y = 80. | ||||||
27.
A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:
- A.22
- C.24
- B.23
- D.26
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Let the number of hens be x and the number of cows be y. Then, | ||||||
|
||||||
| Solving (i) and (ii), we get : x = 26, y = 22. | ||||||
28.
If a * b = 2a – 3b + ab, then 3 * 5 + 5 * 3 is equal to :
- A.22
- C.26
- B.24
- D.28
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| 3 * 5 + 5 * 3 = (2 x 3 – 3 x 5 + 3 x 5) + (2 x 5 – 3 x 3 + 5 x 3) | |||
|
|||
29.
| 2.375 x 5.22 | 0.87 - 1.425 x 0.02 = ? |
- A.0.142215
- C.14.2215
- B.1.42215
- D.None of these
- Answer & Explanation
- Report
Answer : [C]
Explanation :
Explanation :
|
||||||||
|
||||||||
|
||||||||
|
||||||||
30.
A bonus of Rs. 1000 is to be divided among three people so that Rohit receives twice as much as Sachin, who receives one-fifth as much as Gagan. How much money should Gangan receive?
- A.Rs. 100
- C.Rs. 375
- B.Rs. 250
- D.Rs. 625
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| Let Gagan's share = Rs. x | ||||||||||||||||
|
||||||||||||||||
|
||||||||||||||||
|
||||||||||||||||
|
||||||||||||||||
|
|
||||||||||||||||||||||||||||
