Day 3: Race for mains : Quantitative Aptitude

1. 3 years ago the average age of husband, wife and their child was 27 years and that of wife and the child 5 years ago was 20 years. Then find the present age of the husband ? (A) 20 year (B) 40 year (C) 35 year (D) 50 year 2. The weight of the container is 25% of its weight which is filled with a certain fluid. When some fluid is removed, the weight of the container and remaining fluid becomes 50% of its original weight. What fractional part of the liquid has been removed ? (A) 1/3 (B) 3/4 (C) 2/3 (D) 5/7 3. The mean temperature from monday to wednesday was 370C and from tuesday to thursday was 340 C . If the temperature of thursday was 5 4 th that of monday, then the temperature on thursday was: (A) 20º (B) 32º (C) 35º (D) 36º 4.An electric pump can fill a tank in 3 hours. Because of a leakage in the tank, it took 3.5 hours to fill the tank. If the tank is full, how much time the leakage will take to empty it ? (A) 20 Hours (B) 21 Hours...