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Mathematics is the door and key to the sciences.  ~ Roger Bacon

Sample SMaths Challenge Question for Category Primary/Year 4

Answer with solution:


William wanted to buy a digital camera. He saved RM8 on the 1st day, RM16 on the 2nd day, RM32 on the 3rd day, RM64 on the 4th day and so on. After a week, William saved just enough money to buy the digital camera. How much did the digital camera cost?

a) RM512             c) RM508

b) RM1016           d) None of the above

The digital camera cost RM1016