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F.1 Math questions

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Please to solve the following questions1) Subtract the sum of the prime numbers between 10 to 20 from the sum of the first 3 common multiples of 3 and 4. Find the result. 72-60=12 (Is it correct?) 2) A number of sweets are divided among four girls, Mary, Grace, Helen and Mabel. Marys gets... 顯示更多 Please to solve the following questions 1) Subtract the sum of the prime numbers between 10 to 20 from the sum of the first 3 common multiples of 3 and 4. Find the result. 72-60=12 (Is it correct?) 2) A number of sweets are divided among four girls, Mary, Grace, Helen and Mabel. Marys gets 4/15 of the sweets and Grace gets 3/10. The rest is divided equally between Helen and Mabel. What fractions of the sweets does Mabel get? 3) A test paper with maximum marjs 80 has 10 questions carrying equal marks. For every wrong answer and blank answer the student will lose 5 marks and 3 marks respectively. Find the total mark for a student who has attempted 9 questions in which 6 are correct and 3 are wrong.

最佳解答:

1. Correct 2. 13/60 3. 62 marks [80-3-(5x3)]

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