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At Sahara shopping centre, a person can purchase as many articles at a time as his or her age that is a person of n years age can purchase only n similar articles at a time. Amisha is younger to her elder brother who has just entered his twenties. One day Amisha went to the Sahara shopping center, she purchased the same toffees at a particular rate on the ground floor. But when she reached on third floor she found that she could purchase double the no. of toffees with the same amount as she had spent on the ground floor. Also to purchase the same no. of toffees on the third floor she had to spend  2 less than that of on the first floor. How many toffees did she buy?

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Important Questions on Ratio, Proportion & Variation

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A contractor deployed some men to plant 1800 trees in a certain no. of days. But in 13rd  of the planned time 120 plants could be less planted so to fulfill the target for the rest of the days every day 20 more plants were planted. Thus it saved one day out of the initially planned no. of days. How many plants did he plan to plant each day initially?
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A and B have to write 810 and 900 pages respectively in the same time period. But A completes his work 3 days ahead of time and B completes 6 days ahead of time. How many pages did A write per hour if B wrote 21 pages more in each hour?
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Three friends A, B, and C decided to share the soda water with D, who had no soda water. A contributed 2 tumblers more than that of B and B contributed 1 tumbler more than that of C and then all of them had an equal amount of soda water. In turn, D paid money, which was divided among A, B, and C in the ratio of their contribution to D. Thus A had gotten thrice as much money as B had gotten. The price of each tumbler of soda water was  15 and each transaction was integral in numbers either the sharing of money or contribution of soda water. What was the sum of money that B had gotten?
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In Maa Yatri Temple every devotee offers fruits to the orphans. Thus every orphan receives bananas, oranges, and grapes in the ratio of 3:2:7 in terms of dozen. But the weight of a grape is 24gm and the weight of banana and orange are in the ratio of 4:5, while the weight of orange is 150gm. Find the ratio of all the three fruits in terms of weight, that an orphan gets : 
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In two alloys the ratio of Iron and copper is 4: 3 and 6: 1, respectively. If 14 kg of the first alloy and 42 kg of the second alloy are mixed together to form a new alloy, then what will be the ratio of copper to iron in the new alloy:
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In a zoo, there are rabbits and pigeons. If heads are counted, there are 340 heads and if legs are counted there are 1060 legs. How many pigeons are there?
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6 litre is taken out from a vessel full of Kerosene and substituted by pure petrol. This process is repeated two more times. Finally the ratio of petrol and Kerosene in the mixture becomes 1701: 27. Find the volume of the original solution:
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In three vessels, each of 25 litres capacity, mixture of milk and water is filled. The ratio of milk and water are 3: 1, 2: 3,4: 3 in the respective vessels. If all the three vessels are emptied into a single large vessel, then what will be the ratio of water to milk in the resultant mixture?