CBSE - Aptitude Mathematics

If 45 cows eat as much as 32 oxen, how may cows Will eat as much as 40 oxen (1) 42 (2) 50 (3) 58 (4) NONE OF THESE

The next number in the geometric progression 5, 10, 20, ... is 1. 25 2. 30 3. 35 4. 40

Kunal purchased a cubboard having a price tag of Rs. 2400 for Rs. 2000 and sold it with 40% profit. At what price did he sell it? (1) Rs. 2800 (2) Rs. 3360 (3) Rs. 2960 (4) Rs. 3200

In a house, there are six 40 watt lamps which are on for 5 hours a day and three 80 watt fans which are on for 10 hours a day. If electricity costs Rs.2 per kilowatt hour, what is the monthly electricity bill? 1. Rs.216 2. Rs.280 3. Rs.315 4. Rs.400

Subtraction in natural numbers is 1. always possible 2. possible 3. never possible 4. not always possible