What approximate value should come in place of the question mark (?) in the following equations? 1. 8.5939 + 16.84 x 6.5 ÷ 4.2 =? 25 42 44 35 40 2. 1.542 x 2408.69 + 1134.632=? 4600 4800 5200 6400 3600 3. 9980 ÷ 49 x – 1130 =? 3800 4500 2600 3000 4080 4.
1. A jar contained a mixture of two liquids A and B in the ratio 4 : 1. When 10 litres of the mixture was taken out and 10 litres of liquid B was poured into the jar, this ratio became 2 : 3. The quantity of liquid A contained in the jar initially was
1. A boat takes 90 minutes less to travel 36 miles downstream than to travel the same distance upstream. If the speed of the boat in still water is 10 miles/hour, the speed of the stream is A. 2m/hr B. 2.5 m/hr C. 3m/hr D. 4m/hr 2. A motor boat, whose speed is 15 km/hr
1. Two pipes can fill a tank in 10 h and 16h respectively. A third pipe can empty the tank in 32 h. If all the three pipes function simultaneously, then in how much time the tank will be full? (in hours) 7 7 8 6 8 2. Pipes A and B can fill a
1. In a school with 600 students, the average age of the boys is 12 years and that of girls is 11 years. If the average age of the school is Il years and 9 months, then the numbers of girls in the school is A. 450 B. 250 C. 150 D. 350 2. One
1. A, B, C can do a piece of work individually in 8, 10 and 15 days respectively. A and B start working but A quits after working for 2 days. After this, C joins B till the completion of work. In how many days will the work be completed? A. 53/9 days B. 34/7
1. A 25 m ladder is placed against a vertical wall of a building. The foot of the ladder is 7 m from the base of the building. If the top of the ladder slips 4 m, then the foot of the ladder will slide: 5m 8m 9m 15m 2. The angles of elevation of
1. In a business A and C invested amounts in the ratio 2:1. Whereas the ratio between amounts invested by A and B was 3:2. If Rs 157300 was their profit, how much amount did B receive? (1) Rs 72600 (2) Rs 48400 (3) Rs 36300 (4) Rs 24200 (5) None of these 2. A,
1. The H.C.F. and L.C.M. of two numbers are 8 and 48 respectively. If one of the numbers is 24, then the other number is A. 48 B. 36 C. 24 D. 16 2. The H.C.F. of two numbers is 8. Which one of the following can never be their L.C.M.? A. 24 B. 48
1. A train moves with the speed of 180 km/hr then its speed in meters per second is A. 5 B. 30 C. 40 D. 80 2. Which of the following trains is the fastest? A. 25 m/sec B. 1500 m/min C. 90 km/h D. None of these 3. A train 150 m long is
