Q1. A certain sum at certain rate % per annum simple interest becomes Rs 2100 in 2 years and Rs 2250 in 5 years. The principal and rate of interest are -
(a) Rs 1800; 3%(b) Rs 1800; 5%
(c) Rs 2000; 3%
(d) Rs 2000; 2.5%
Q2.Suhit borrowed a sum of Rs 6,300 from Ravi at the rate of 14% for 3 years. He then added some more money to the borrowed sum and lent it to Mohit at the rate of 16% of simple interest for the same time. If Suhit gained Rs 618 in the whole transaction, then what sum did he lend to Mohit?
(a) Rs 7,000
(b) Rs 6,800
(c) Rs 7,200
(d) Cannot be determined
Q3.Kaushal employs some men to do a piece of work in 90 days working 6 hours a day. But after working for 60 days they went on strike due to which the work was disrupted for 10 days and there was no work during strike. After that Kaushal employed 4 additional men to finish the work and he also increased the working hours by 2 hours. Find the initial number of men kaushal employed?
(a) 40 men
(b) 30 men
(c) 35 men
(d) 32 men
Q4.A, B and C working individually can complete a piece of work in 10, 15 and 20 days respectively. They completed the work in 4 days with the help of D. If they earned Rs. 3750 for the entire work, how much did D earn for work?
(a) Rs. 450
(b) Rs. 500
(c) Rs. 550
(d) Rs. 600
Q5.A, B, C and D can do a piece of work in 24, 16, 32 and 12 days respectively. If A started the work and after one day, B and C also joined him. After two days of that A left the job and mean while D joined the work. If B and C left the work 2 days and 4 days respectively before the completion of work. Find how many days D had done the work.
(a) 4 days
(b) 5 8/17 days
(c) 5 days
(d) 5 5/17 days
Q6.A and B can complete a work in 40% lesser time than C while B and C can complete the same work in 60% lesser time than A. If A, B and C together can complete the work in 20 days. Then in how many days they alone do the work?
(a) 1120/16,1120/19,1120/21
(b) 1100/7,1100/13,1100/23
(c) 1300/7,1300/11,1300/19
(d) None of these
Q7.At Vodafone Pvt Ltd. there are some engineering students employed as trainee engineers, belong to two eminent institutions of India. One group belong to MIT and another to NIT. Each student of MIT works for 10 hours a day till 60 days and each student of NIT works for 8 hours till 80 days on the two same projects. The ratio of number of students of MIT and that of NIT is 4 : 5 respectively. Students of which institution is slower in work and by how much?
(a) Each student of MIT is 20% less efficient than that of NIT
(b) Each student of NIT is 33.33% less efficient than that of MIT
(c) Each student of NIT is 25% less efficient than that of MIT
(d) Each student of MIT is 33.33% less efficient than that of NIT.
Q8.Arun and Satyam can complete a work individually in 12 working days and 15 working days respectively with their full efficiencies. Arun does work only on Monday, Wednesday and Friday while Satyam does the work on Tuesday, Thursday and Saturday. Sunday is always off. But Arun and Satyam both works with half of their efficiencies on Friday and Saturday respectively. If Arun started the work on 1st January which falls on Monday followed by Satyam on the next day and so on (i.e., they work collectively in alternate days), then on which day work will be completed?
(a) Tuesday
(b) Wednesday
(c) Thursday
(d) Friday
Q9. Two taps are running continuously to fill a tank. The Ist tap could have filled it in 5 hours by itself and the second one by itself could have filled it in 20 hours. But the operator failed to realise that there was a leak in the tank from the beginning which caused a delay of one hour in the filling of the tank. Find the time in which the leak would empty the full tank.
(a) 15 hours
(b) 20 hours
(c) 25 hours
(d) 40 hours
Q10.A man sells his good at 7% loss. Had he sold it Rs 80 more, he would have gained 9% profit. Find the initial C.P.?
(a) Rs 500
(b) Rs 450
(c) Rs 480
(d) Rs 490
No comments:
Post a Comment