[PSSSB Revenue Patwari, 2023]
1. The average weight of A, B and C is 65 kg. If the average weight of C and B is 61.5 kg and the average weight of A and C is 68.5 kg, then the weight of C (in kg) is
65
67
60
68
2. A motorboat goes 24 km in 2 hours along the stream and 10 km in 1 hour against the stream. The speed of the motorboat in kilometers per hour is
14
10
11
12
3. Ravi, Mohan and Govind can complete a task in 12 days, 10 days and 15 days respectively. In how many days can Ravi, Mohan and Govind together complete the same task?
8
4
2
6
4. A, B and C started a business. Twice the investment of A is equal to thrice the investment of B and also five times the investment of C. If the total profit after a year is ₹ 15.5 lakhs, then the share of B in the profit (in ₹ lakhs) is
7.5
3
4.5
5
5. If 3x +2y =7 and 4x-y= 24, then x-y = ?
9
1
-9
-1