Placement Test for Singapore Primary Mathematics 6B
Primary Math 6B - SDE
Primary Math 6B - SDE
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12. A car left Town A at 10:00 a.m. and travelled towards Town B at the average<br />
speed of 70 km/h. At the same time a truck left Town B and travelled towards<br />
Town A over the same road at an average speed of 50 km/h. If the distance<br />
between Town A and Town B is 420 km, at what time would the car and the<br />
truck pass each other?<br />
[4]<br />
13. Last month David and Mary saved some money in a ratio of 3 : 5. This month<br />
they saved an additional $154 together, and David now has three times as much<br />
money as he had last month, while Mary has two times as much as she had last<br />
month. How much money did they save last month?<br />
[4]<br />
14. Mr. Williams had three television sets which were of the same cost price. He sold<br />
one at cost price, one at 20% more than cost price, and one at 15% more than<br />
cost price. If he received a total of $670, how much was his profit?<br />
[4]<br />
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