1.) 75 2.) 80 3.) 90 4.) 100 5.) 110
Sol
3.) Amount invested by Radha double itself in 5 years at compound interest. Radha earn 3900 as interest in 10 years. If Radha doubles his investment after 5 years, then find the compound interest now Radha will receive at the end of 10 years?
1.) 5000 2.) 5100 3.) 5200 4.) 5300 5.) 5400
Sol
4.) In a group of student 22 like Maths, 25 like Science and 17 like English. 7 students like only Science and English, 8 student like only Maths and Science, 6 student like only Maths and English. 2 student like all the three subject. Find the number of student in the group?
1.) 60 2.) 55 3.) 50 4.) 45 5.) Data inadequate
Sol
Data inadequate
5.) A box contain 5 Red, 4 Blue and 6 Green balls, 3 balls pick randomly from the box. Find the probability that all the three balls are not of same color?
1.) 11/129 2.) 421/455 3.) 420/453 4.) 1/7 5.) 5/18
Sol
6.) A boat goes 60 km downstream in 6 hours to reach the destination. The boat will take total 21 hour if it has to go back to the starting point and come back to the destination. Find the speed of boat in still water? (in km/hr)
1.) 5 2.) 6 3.) 7 4.) 8 5.) 9
Sol
21-6 = 15 hr
U = 60/15=4 km/hr
D = 60/ 6 = 10km/hr
B = (10+4)/2= 7 km/hr
7.) 729 ml of combination has coffee and water in the ratio 7: 2. How much more water to be included to get a new combination of coffee and water in the ratio 7 : 3?
1.) 72 2.) 78 3.) 80 4.) 81 5.) 90
Sol
8.) A train start 16 minute late from its destination if it travel with 10 km/hr faster than its normal speed then it will be on time at a distance of 80 km. Find the actual speed of the train?
1.) 45 2.) 48 3.) 50 4.) 51 5.) 52
Sol
9.) The difference between the compound interest and simple interest for third year is Rs 125 and the difference for these in second year is Rs 50. Find the rate of interest?
1.) 25% 2.) 33.33% 3.) 40% 4.) 50% 5.) 60%
Sol
10.) Krishna and Naimish can do a piece of work in 9 days. Krishna alone can do this work in 12 days. They started the work together but after some days Krishna left the work and Naimish work for last 4 days alone. Find after how many days krishna left the work?
1.) 6 2.) 8 3.) 10 4.) 12 5.) Data inadequate
Sol