[PP Sub Inspector 17 Aug 2021]
6. In a hostel provision is sufficient for 150 hostellers for 45 days. If after 10 days, 25 hostellers leave the hostel for their homes. Then the remaining provision will be consumed in how many days?
42 days
55 days
65 days
70 days
7. There is 60% increase in an amount in 5 years at simple interest. What will be the compound interest of ₹14000 after 3 years at the same rate?
₹ 6044
₹ 7494
₹ 8944
₹ 5669
8. The compound interest on a certain sum for 2 years at 10% per anum is ₹ 546. The simple interest on the same sum for double the time at half the rate percent per annum is:
₹ 540
₹420
₹500
₹520
9. A metallic cube of edge 4 cm weighs 4 hectograms. What will be the length of each edge of another cube of the same metal if it weighs 32 hectograms?
5 cm
8 cm
6 cm
7 cm
10. If a = {120 – 20 ÷ 4}; b = {(-20) × (-1) + (-28) ÷ 7} and c = {28 - 5 × 6 + 2}, then find the value of (a+ b × c) ÷ 1000.
0.125
0.115
0.15
0.110