GATE Exam: General Aptitude Pre Assessment Quiz 02

What will be the difference in compound interest on a sum of Rs 12200 at 12% per annum for 1 year, when the interest is compounded half-yearly and yearly?

A boat can travel with a speed of 15 km/hr in still water. If the speed of stream is 7 km/hr,  then find the time taken by the boat to go 72 km in upstream direction?

Starting from his house one day, David walks at a speed of 12 km/h and reaches his school 15 min late. Next day, he walks at a speed of 20 km/h and reaches 15 min early. How far is the school from his house?

What is the least number that when divided by 60, 84, and 96 leaves the remainders 28, 52, and 64 respectively?

The present ages of Ram, Shyam and Mohan are in the ratio of 6 : 7 : 9 and ratio of ages of Shyam, Mohan and Sohan is 8 : 5 : 3. If the age of Sohan is 54 years then find the difference between Shyam and Mohan’s age?

72 coins together made up the total amount of Rs. 8.64. These 72 coins are either 20-paise or 2-paise coins. How many are coins of 2-paise?

Two jars of same capacity are % and 45.5% full of pomegranate juice, respectively. They are filled up completely with coconut water and then the contents of both bottles are emptied into a vessel. The percentage of coconut water in the mixture is:

Two persons P and Q can build a bridge in 24 and 22 days respectively. However, if they work together, they use 250 less stones per day and build the bridge in 12 days. Find the number of stones used in the bridge.

A watch is sold on 20% discount and there is 15% extra discount on cash payment. If Selena purchased it in Rs. 2380 cash payment, then what was the marked price of the watch?

Inlet A is four times faster than inlet B to fill a tank If A alone can fill it in 15 min, how long will it take if both the pipes are opened together?

x, y and z started a business by a share of 3 : 4 : 7 the time for which they invested was 7 : 8 : 9 the difference in the profit of x and z is what % of differences in the profit of z and y?