Start learning 50% faster. Sign in now
Get Started with ixamBee
Start learning 50% faster. Sign in nowThere are four people P, Q, R and S. R and P are the oldest and youngest among them. Q is older than S. Let’s assume the present ages of P, Q, R and S are ‘p’, ‘q’, ‘r’ and ‘s’ respectively. So r>q>s>p Eq.(i) The present age of R is double the present age of P. r = 2p Eq.(ii) (i) The ratio between the present ages of R and S is 4:3 respectively. Let’s assume r = 4a and s = 3a. From Eq.(ii), 2p = r, then 2p = 4a So p = 2a Here no information about the age of Q and the variable ‘y’ is available. So this statement is not sufficient to answer the question. (ii) Four years hence, the average of the present ages of P and Q is 18 years. (p+q+4+4)/2 = 18 (p+q+4+4) = 36 (p+q+8) = 36 p+q = 36-8 (p+q) = 28 Here no information about the variable ‘y’ is available. So this statement is not sufficient to answer the question. (iii) ‘y’ years hence, the age of Q is equal to the present age of R. q+y = r From the given information, the required answer cannot be obtained. So this statement is not sufficient to answer the question. Only (i) & (ii) (p+q) = 28 (2a+q) = 28 q = (28-2a) From the given information, the required answer cannot be obtained. So these statements are not sufficient to answer the question. Only (ii) & (iii) Here three variables are available with the least information. So from the given information, the required answer cannot be obtained. Hence these statements are not sufficient to answer the question. Only (i) & (iii) Here four variables are available with the least information. From the given information, the required answer cannot be obtained. So these statements are not sufficient to answer the question. All (i), (ii) & (iii) From the given information, the required answer cannot be obtained. So these statements are not sufficient to answer the question. (28-2a) + y = 4a
A train 400 metres long is running at a speed of 54 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
Two trains approach each other at 22 kmph and 26 kmph from 2 places 240 km apart. After how many hours they will meet?
Two trains start at the same time from Dehradun and Jaipur and proceed toward each other at the speed of 55 km/hr and 25 km/hr respectively. When they m...
Train A running at speed of 126 km/hr crosses a platform having twice the length of train in 15 sec. Train B whose length is 400m crosses same platform ...
Train X crosses a stationary train Y in 45 seconds and a pole in 25 seconds with the same speed. The length of the train X is 250 meters. What is the le...
Train P takes 27 seconds to cross a tree, and Train Q overtakes Train P, both traveling in the same direction, in 3 minutes. The ...
Two trains started from stations ‘A’ and ‘B’ at same time and started travelling towards each other at speeds of 80 km/hr and 70 km/hr, respecti...
How many seconds will a train 66 m in length, travelling at the rate of 43 km an hour, take to pass another train 86 m long, proceeding in the same dire...
Two trains, each 150 meters long, are running in opposite directions. If the speed of one train is twice that of the other and they take 20 seconds to c...
A train crosses a 500-metre-long platform in 30 seconds, and the same train crosses a tunnel 20% longer than the platform in 42 seconds. Find the speed ...