A bus was travelling at a constant speed from Town A to Town B. It passed a car travelling at a constant speed of 90 km/h in the opposite direction. 1 and 1/2 hours later, the bus reached Town B but the car was still 25 km away from Town A. If the bus took 4 hours to complete the whole journey, what is the distance between the two towns?
Solution
Answer: 256 km
Monday, September 28, 2009
Rosyth Sch 2007 PSLE Math Prelim Q48
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A fruit seller had some oranges, pears and durians. After selling some of them, there were 6 pears for every 5 oranges left and 7 oranges for every 3 durians left. He sold 168 oranges. He had 456 pears and oranges left. The number of pears sold was the same as the number of durians sold. a) How many oranges had he at first? (2m) b) If the number of pears was twice the number of durians at first, what was the total number of pears and durians sold? (3m)
Joe bought some chocolates and gave half of it to Ken. Ken bought some sweets and gave half of it to Joe. Joe ate 12 sweets and Ken ate 18 choclates.The ratio of sweets to chocolates Joe had became 1 : 7 and the ratio of sweets to chocolates Ken had became 1:4. How many sweets did Ken buy ?
?: Sally baked some cookies to sell. ¾ of them were chocolate cookies and the remaining were almond cookies. After she sold 210 chocolate cookies and 5/6 of the almond cookies, she had 1/5 of the cookies left. How many cookies did she sell? Any info wrong with this question?
For the cookie question, I thought Sally sold 210 almond cookies and 5/6 of the chocolate cookies. What is the solution?
lol omg .. psle question leaked? Oct 3 he got that question...
He got the qns on 8 oct.. that's the day of PSLE Mathematics.
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