Need some help for RGPS SA2 2011 question.
1. Becky bought 7 basketballs with 3/7 of the money she had. She bought another 2 basketballs and 11 baseballs with her remaining money. If Becky used the amount of money she had at first to buy only baseballs, what was the maximum number of baseballs she could buy ?
2. The mass od the sand in sack B was 1/4 the mass of sand in sack A. After 52.5 kgs of the sand in sack A and 10kg 150g of the sand in sack B was used, the mass of sand in sack A was 1/2 the mass of sand in sack B. What was the total mass of and in sack A and sack B at first?
3. The average number of sit-ups performed by 15 girls and some boys was 50. The average number of sit-ups performed by the girls was 80% of the average number od sit-ups performed by all the pupils. The average number of sit-ups performed by the boys was 30% more than the average number of sit-ups performed by the girls.
b) what percentage of the pupils were boys ?
Thank you.
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RE: Q&A - P5 Math
Thanks charsen .
Need help for another 2 questions,
1. There are some crystal and glass marbles in a pouch. If 3 crystal marbles are removed from the pouch, the number of crystal marbles left will be 1/6 of the glass marbles left. If 5 glass marbles are removed from pouch, the number of crystal marbles left will be 1/4 of the glass marbles left. How many marbles are there in the pouch at first.
2. Grandma had some yellow and purple sweets in the ratio of 9:7. On Monday, she made 54 more yellow sweets. On Tuesday, she gave away 44 purple sweets and sold 129 yellow sweets. The number of yellow sweets to number of purple sweets became in the ratio of 6:5. How many yellow sweets are there in the end ?
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RE: Q&A - P5 Math
Need help for this question.
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