The pictograph shows the number of eggs sold by a trader in three days. If the trader still had 115 eggs left after the three days, calculate the number of eggs he had at first.
A
185
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B
300
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C
215
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D
415
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Solution
The correct option is A 415 Given that, one symbol represents 25 eggs.
Monday has 3 symbols.
Therefore on Monday, the trader sold 3×25=75 eggs.
Tuesday has 5 symbols.
Therefore on Tuesday, the trader sold 5×25=125 eggs.
Wednesday has 4 symbols.
Therefore on Wednesday, the trader sold 4×25=100 eggs.
The total number of eggs sold within 3 days =75+125+100=300 eggs.
Given that, 115 are left after 3 days.
Therefore, the initial number of eggs =100+115=415 eggs.