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1)The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
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2) Salaries of Ray and Gorge are in the ratio 2: 3. If the salary of each is increased by $4000, the new ratio becomes 40: 57. What is s Gorges salary?
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3) In a bag, there are coins of 25p, 10p and 5p in the ratio of 1: 2 : 3. If there are $30 in all, how many 5 p coins are there?
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4) If three numbers in the ratio 3 : 2: 5 be such that the sum of their squares is 1862, the middle number will be
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5) There are 200 registered members of a Sports Club. The ratio of female to male members of the Club is 3:7.
1)How many member of the group are female?
2) What percentage of the members is male?
1) = females
2) = %
6) How will $105 be shared between Jack, Ken and Aaron; if Jack gets double of what Ken gets, and Ken gets double of what Aaron
Ratio of Jack, Ken and Aarons share is $ : $ :$
7) In a compound house, the ratio of the number of males to that of the females is 4: 3. If there were 20 males less and 10 females less, then the ratio would have been 5 : 4. How many people were there in the complex?
= people
8) Jones divides $567 among his three children Sam, Ron and Gary in such a way that Sam gets 5 four-times of what Ron gets and Ron gets 2.5 times of what Gary gets. Find what each child got.
The ratio of Sam, Ron and Gary share is $ : $ : $
9) In a certain town, the ratio of left-handed people to right-handed people is 2:9. How many right-handed people would you expect to find in a group of 132 people?
= people
10) A recipe to make lasagna for 6 people uses 300 grams of minced beef. How much minced beef would be needed to serve 8 people?
= g