List of practice Questions

In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that 1 girl and 2 boys are selected is:
A school has only four classes that contain 10, 20, 30 and 40 students respectively. The pass percentages of these classes are 20%, 30%, 60% and 100% respectively. Find the pass percentage of the entire school.
The average age of A, B, C, D and E is 40 years. The average age of A and B is 35 years and the average age of C and D is 42 years. Age of E is:
LCM of two numbers is 936. If their HCF is 4 and one of the numbers is 72, the other number is:
After allowing a discount of 11.11%, a trader still makes a gain of 14.28%. At how many percent above the cost price does he mark the selling price of his goods?
A dealer buys dry fruits at Rs. 100, Rs. 80, and Rs. 60 per kilogram. He mixes them in the ratio of 3:4:5 by weight and sells at a profit of 50%. At what price per kilogram does he sell the dry fruits?
A reduction of 10% in the price of tea enables a dealer to purchase 25 kg more tea for Rs. 22500. What is the reduced price per kg of tea?
Two trains are running in opposite directions with the same speed. If the length of each train is 120 meters and they cross each other in 12 seconds, then the speed of each train (in km/hr) is:
The percentage increase in the area of a rectangle, if each of its sides is increased by 20% is:
The product of two numbers is 120 and the sum of their squares is 289. The sum of the numbers is:
What is the sum of two consecutive even numbers, the difference of whose squares is 84?
Thirty nine persons can repair a road in 12 days, working 5 hours a day. In how many days will thirty persons, working 6 hours a day, complete the work?
If the selling price is doubled, the profit triples. Find the profit percentage.
Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
A and B are two alloys in which ratios of gold and copper are 5:3 and 5:11 respectively. If equal amounts of the two alloys are melted and made into alloy C, what will be the ratio of gold and copper in alloy C?
If x: y = 5: 2, then (8x + 9y): (8x + 2y) is:
A man completes a certain journey by a car. If he covered 30% of the distance at the speed of 20 km/hr, 60% of the distance at 40km/hr and the remaining distance at 10 km/hr, his average speed is:
An athlete runs 200 meters race in 24 seconds. His speed in km/hr is:
In how many ways can 2 students be chosen from the class of 20 students?
From 6 men and 4 ladies, a committee of 5 is to be formed. In how many ways can this be done, if the committee is to include at least one lady?
A train 800 meters long is running at a speed of 78 km/hr. If it crosses a tunnel in 1 minute, then the length of the tunnel (in meters) is:
Which of the phrases given below each sentence should replace the phrase printed in bold type to make the sentence grammatically correct?
I need not offer any explanation regarding this incident - my behavior is speaking itself.
Anand and Deepak started a business investing Rs.22, 500 and Rs.35, 000 respectively. Out of a total profit of Rs. 13,800, Deepak's share is:
Yogesh started a business investing Rs. 45000. After 3 months, Pranab joined him with a capital of Rs. 60000. After another 6 months, Atul joined them with a capital of Rs. 90000. At the end of the year, they made a profit of Rs. 20000. What would be Atul's share in it?
Find the compound interest on Rs. 1000 at the rate of 20% per annum for 18 months when interest is compounded half yearly.