Q1. A hunter sees a deer 200m away and immediately shoots an arrow, which travels at a speed of 30 m/sec for 300 meters after which it drops down (immediately). At what speed should the deer run so as to miss the arrow? Q2. A pipe P can fill an empty tank in 12 minutes and another pipe, Q, can empty the same tank completely in 20 minutes. Pipe P is configured to close automatically when the water level in the tank reaches 3/4th of the height of the tank and simultaneously the pipe Q opens and operates until the water level falls to exactly 1/4th of the height of the tank after which it closes and simultaneously P opens, If this process continues indefinitely, what portion of the tank is filled exactly one hour? (Assume that the tank is initially empty) Q3. Ram and Shyam together can finish a work in eight days. If they work individually, then Ram takes twelve more days more than Shyam to finish the same work. In how many days can Ram finish the same work alone? Q4. A plane left half an hour later than the scheduled time and in orders to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 % over its usual speed. The increase speed is Direction for Q5 and Q6 Q5. If the total time taken to fill the cistern with all the 10 taps open is 1 minute, then how many minutes would the 6th tap take, when working alone? Q6. If the total time taken to fill the cistern with all the 10 taps open is 1 minutes, then the time taken when only one the first 7 taps are opened will be (in minute)? |
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Q3. Ram and Shyam together can finish a work in eight days. If they work individually, then Ram takes twelve more days more than Shyam to finish the same work. In how many days can Ram finish the same work alone?
a. 8
b. 12
c. 24
d. 18
ans is 24
Little Star
n/a
Q1. A hunter sees a deer 200m away and immediately shoots an arrow, which travels at a speed of 30 m/sec for 300 meters after which it drops down (immediately). At what speed should the deer run so as to miss the arrow?
a. more than 10 m/sec
b. more than 30 m/sec
c. more than 5 m/sec
d. None of these
ans is a) more th an 10m/sec
Little S T ar
n/a
Q4. A plane left half an hour later than the scheduled time and in orders to reach its destination 1500 kilometers away in time, it had to increase its speed by 33.33 % over its usual speed. The increase speed is
a. 1000 km/hr
b. 750 km/hr
c. 780 km/hr
d. 1250 km/hr
ans is 750 originalspeed
Little STar
n/a
Q4. a. 1000 km/hr
Q5. d. 19 47/162
Q6. a. 4 17/27
n/a
Q2. A pipe P can fill an empty tank in 12 minutes and another pipe, Q, can empty the same tank completely in 20 minutes.
Pipe P is configured to close automatically when the water level in the tank reaches 3/4th of the height of the tank and simultaneously the pipe Q opens and operates until the water level falls to exactly 1/4th of the height of the tank after which it closes and simultaneously P opens, If this process continues indefinitely, what portion of the tank is filled exactly one hour? (Assume that the tank is initially empty)
a. 1/4
b. 2/5
c. 3/5
d. 3/4
ans is c(3/5)
Little Star
n/a
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