Ques 1.
What is the approximate amount at compound interest of rs 5000 in 3 years at 4% p.a. ?
(a) Rs 5624
(b) Rs 5684
(c) Rs 5864
(d) None of these
Ans 1.
Ques 2.
The simple interest on Rs 400 for 5 years together with that on Rs 600 for 4 years , the rate being same in the both the cases came to Rs 396.Rate % p.a. equals.
(a) 9
(b) 6 1/4
(c) 7 1/2
(d) 8 1/3
Ans 2.
Ques 3.
A grocer sells 100kg of gur partly at 10% profit and partly at 20% profit, gaining 12% on his outlay. How much does he sell at 10% profit ?
(a) 88 kg
(b) 75 kg
(c) 80 kg
(d) None of these
Ans 3.
Ques 4.
A and B can do piece of work in 60 days while B and C do the same work in days and C and A in 40 days. They all started the work together and after 20 days B and C Left. How many days more will A take to finish the work ?
(a) 24 Days
(b) 36 days
(c) 48 Days
(d) 60 days
Ans 4.
Ques 5.
A and B can do a piece of work in 12 days, B and c in 15 days, and C and A in 20 days. How long would each take separately to do the same work ?
(a) 30 days, 20 days, 60 days.
(b) 20 days, 25 days, 50 days.
(c) 18 days, 36 days, 44 days
(d) None of the above
Ans 5. A + B + C can together in one day do 1/2 ( 1/12 + 1/15 + 1/20 ) of the work.
i.e. 1/10 of the work.
A can do ( 1/10 -1/15) of the work i.e. 1/30 of the work in one day.
B can do ( 1/10 - 1/20) of the work i.e.1/20 of the work in one day.
C can do ( 1/10 - 1/12) of the work i.e., 1/60 of the work in one day.
Hence, A,B and C can Separately do the work in 30 days ,20 days and 60 days respectively.
Ques 6.
two pipes can fill a cistern separately in 24 minutes respectively and a waste pipe can drain off 30 gallons per minute .If all the three pipes are open, the cistern fills in one hour. What is the capacity of the cistern ?
(a) 300 gallons
(b) 450 gallons
(c) 600 gallons
(d) 750 gallons
Ans 6.
Ques 7.
x is a whole number . If the only common factors which x and x2 have are 1 and x it follows that x is
(a) a perfect square
(b) an odd number
(c) equal to 1
(d) a prime number
Ans 7. Since x and x2 have only 1 and x as common factors it follows that x is a prime number.
Ques 8.
What is the cost of Rs 1500, 4 per cent stock at 97 7/8, brokerage 1/8 ?
(a) Rs 1480
(b) Rs 1466
(c) Rs 1470
(d) None of these
Ans 8.
Ques 9.
If the annual rate of interest increases from 6 1/2% to 8%, a clerk 's annual income from an investment increases by Rs 405. What is his investment ?
(a) Rs 30000
(b) Rs 27000
(c) Rs 45000
(d) None of these
Ans 9.
Ques 10.
Find the day on 1st January 2000 A.D.
(a) Monday
(b) Wednesday
(c) Friday
(d) Saturday
Ans 10. 1600 years have 0 odd days.
300 years have 1 odd days.
99 years have 24 leap years and 75 ordinary years and hence have ( 48 + 75) odd days i.e. 4 odd days
. . Total number of odd days = 0 + 1 + 4
= 5 odd days
Hence, 1st January , 2000 corresponds to 6 odd days and so the day would be Saturday.
