Mathematics Test 1. 30 years ago,tom purchased a house.on avarage,the value of the house has doubled every 6 years.if the house is worth 320,000 tk today what did he pay for it 30 yearse ago? a.5000 b.10000 c.15000 d.20000 e.none of these 2. If a varies inversely with b and b=5 when a=3 .what is the value of b when a=10? a.0.5 b.1.5 c.2 d.30 e.none of these 3. An investor wants to have $ 1 million in 20 years. if the return is 10% compounded annually, what lump-sum amount should be invested to attain the goal of the investor? a)$ 148,644 b)$ 117,459 c)$ 100,000 d) none of these 4. What is the maximum number of points of intersection between a square and a circle? a.4 b.5 c.8 d.9 e.none of these 5. 30 mins lated from home and reached his office 50 mins late while driving 25% slower than his usual speed . how much time in minutes does he usually take to reach his office from home ? 6. What is the probability of rolling 3 six-sided dice, and getting a different number on each dice ? A.1/10 B.3/20 C.4/9 D.5/9 E.7/18 7. A well with 14 m inside diameter is dug 8 m deep. the earth taken out of it has been evenly spread all around it to a width of 21 cm to form an embankment. Find the height of the embankment. a) 43.3 cm b) 53.3 cm c) 63.3 cm d) none of these 8. There are 20 students at don college.what is the probability that at least 3 of them have their birthdays in the same month? A.1/20 b.1/17 c.1 d.3/20 e.none of these 9. When the price of gold went up ,a jeweler raised the prices on certain rings by 60%.on one ring,however, the price was accidently reduced by 60%.by what % must the incorrect price be increased to reflect the proper new price? A.100% b.160% c.140% d.300% e.none of these
Posted on: Sun, 22 Sep 2013 19:49:59 +0000
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