[PP Sub Inspector 17 Aug 2021]
1. If two trains are moving in the same direction, one with a speed of 12 m/s and of length 100m and second one with a speed of 18 m/s and of length 90m. How much time will it take one train to overtake (last compartment of one train is ahead of the engine of the other train) the other if both the trains start such that their engines are at the same position in the beginning?
25 sec
15 sec
20 sec
10 sec
2. If x + 2 = 4x - 10, then what is the value of x?
3
5
4
6
3. What is the value of \(\left (5.3 \over4 + {{3 \times 0.6} \over 2 +{1\over 5}} \right) ÷ \left (5 \times 2.5\over 9 - {{2 \times 0.8} \over 3 -{1\over 5}} \right) \)?
\(125 \over 11\)
\(25 \over 91\)
\(125 \over 91\)
\(649 \over 875\)
4. Which one equals 5 ?
\({1 \over 2} \times {1\over 10}\)
10 + 15 ÷ 5
-22 + 1
\({1 \over 5} ÷ {1 \over 25} \)
5. What is the value of x, if {(144)2 ÷ 48 × 16} ÷ 72 = 8 × x ?
36
96
48
12