In a survey among students at all the IIMs, it was found that 48% preferred coffee, 54% liked tea and 64% smoked. Of the total, 28% liked coffee and tea, 32% smoked and drank tea and 30% smoked and drank coffee. Only 6% did none of these. If the total number of students is 2000 then:
1. The ratio of the number of students who like only coffee to the number who like only tea is ? 2. The number of students who like coffee and smoking but not tea is ? 3. The percentage of those who like coffee or tea but not smoking among those who like at least one of these is ? a. more than 30 b. Less than 30 c. Less than 25 d. None of these
A tank of litres capacity has been filled with water thru two pipes, the first pipe having been opened hours longer than the second. If the first pipe was opened as long as the second, and the second pipe was opened as long as the first pipe was open, then the first pipe would deliver half the amount of water delivered by the second pipe; if the two pipes were opened simultaneously, the tank would be filled up in 17 hours. How long was the second pipe open? a. 10hrs b. 12hrs c. 15hrs d. 18hrs
P.S. Is it possible to solve this question without solving the three equations that we are getting?
Coz 30 ways of arranging the variants! 12C6 ways of picking the students and 6! x 6! the way in way inwhich we can arrange them all together 30x (12C6) x 6! x 6!
Is my ans right dude?
The variants can be arranged in 24 ways and not 30 ... i guess
Q1. In order to buy a car, a man borrowed Rs 1,80,000 on the condition that he had to pay 7.5% interest every year. He also agreed to repay the principal in equal annual installments over 21 years. After certain number of years, however, the rate of interest reduced to 7%. It is also known that at the end of the agreed period, he will have paid in all Rs 2,70,900 in interest. For how many years did he pay at th reduced interest rate?
Q2. An amount of Rs. 12820 due 3 years hence, is fully repaid in three annual installment starting after 1 year. The first installment is 1/2 of the second and second is 2/3 of third. If rate of interest is 10% per annum, find the firt instalment??(actually iam getting 2662 as the answer which is not in options)
Could some one please explain how to solve the following questions?
1. Seven different objects to be divided amongst 3 people. In how many ways can that be done so that at least one of em gets exactly one object? a. 2484 b.1176 c. 729 d. 2424 e. None
2. Seven different objects to be divided amongst 3 people. In how many ways can that be done so that one or two get none. a. 381 b. 36 c.84 d.174 e.180
3. Six white and Six black balls of same size are to be distributed among ten urns so that at least one ball is in each urn. What is the no of different distributions? a. 25000 b.26250 c.28250 d.13125
4. How many 6 digit nos have 3 odd and 3 even digits?
5. How many 7 digit nos are there whose sum of digits is odd?
6. A test has 4 sections. Max marks is 45. Qualifying marks is 90. In how many ways can a student qualify? a.34546 b.6296 c.64906 d. None of these.
I have got Arun Sharma's fourteenth reprint 2005 edition(Quant). Wanted to know how different is the latest edition of this book from what i have? Thanks. P.s. : sorry, if i'm posting in the wrong place.
A sum of money placed at compound interest doubles itself in 3 years.In how may years will it amount to 8 times itself? a)9 b)8 c)27 d)7
kindly explain the approach?
Let the sum of money be : x Now, x becomes 2x in 3 yrs. As per the concept of compund interest, 2x will be now the principal and it will become 4x in 3 yrs. (any amount will double in 3 yrs). So, original amount becomes 4 times in 6 yraes (3+3). So, it will become 8 times in 9 yrs.
if the sales of footwear had touched Rs 80 crore in 2005 ,the average annual percentage growth of footwear for the two year period 2003 -2005 would have been
1.The difference between simple and compound interest on a sum of money at 5% per annum s Rs 25.What is the sum? a)5000 b)10000 c)4000 d) data insufficient
2.Difference between the interest received from 2 diff banks on Rs 400 for 2 years is Rs 4.What is the diff between their rates? a)0.5% b)0.2% c)0.23% c)0.52%
3.If the CI on a certain sum for 2 years is Rs 21.What could be the SI? a)20 b)16 c)18 d)20.5
hello friends i have a question for u all. a circle is inscribed in a square and between the gaps a rectangle is drawn of 20*10 cm,find the radius of the circle. (a) 20 (b) 40 (c) 50 (d) non
