Please help me to solve this question

30% of the number of students in centre X is 45 more than 40% of the number of students in centre Y.After 10% of the students from centre X joined centre Y the number of student in centre X was 200 more than the number of students in centre Y.
Find the number of student in centre Y?

Hi I need help for this question

Adrain spent $80 of his allowance & saved the rest.If he increased his spending by 20% his savings would decrease by 40%. How much was his allowance? Thanks in advance.

Hi I need help for this question

Adrain spent $80 of his allowance & saved the rest.If he increased his spending by 20% his savings would decrease by 40%. How much was his allowance? Thanks in advance.

Hi kangkangteo thanks for your answers but I don’t understand in 2 nd question how u got the ratio 6:10 at first & why u did 10 divide by 2.

Hi I need a help to solve the problems

1) Keagan spent 25%of his money on petrol & $70 on food. He then spent 30% of his remanding money on clothes & $105 on groceries. He was left with $35, how much money did he have at first?.


2) Lukas & Jason share some stickers.The ratio of Lukas stickers to Jason stickers was 3:5.After Lukas gave away 20 stickers,Lukas has half as many stickers as Jason. How many more stickers Lukas give away in order to have 20% of Jason’s stickers?

3) In a hall chairs are arranged in rows such that there were exactly 15 chairs in each row. For a performance 7 more chairs were added into the hall and all the chairs were rearranged. There are now 11 chairs in each row and 9 more rows than before.How many chairs in the hall for the performance?

Thanks in advance.

Help me to solve this problem

Angel bought 20 tables& chairs for $372.She sold 4 chairs away.Then she had the same number of tables and chairs left.Each table cost $9 more than each chair.How much did she pay for the tables?

Please help me to solve this problem


Carina bought some chocolates and gave 1/3 of them to Daisy.Daisy bought some sweets and gave 1/3 of them to Carina.Carina ate 24 sweets while Daisy ate 18 chocolates.As a result the ratio of the number of sweets to number of chocolates carina had become 1:12 & the number of sweets and chocolates daisy had were in the ratio 4:3. How many sweets did Daisy buy.
:thankyou:

Please help me with this question

At first, there were 230 kg of oranges and durians in a market.After 60% of the oranges and 20 kg of the durians were sold, the remaining oranges and durians were of equal weight. What was the original weight of the durians?


Thanks in advance.

Hi PSLEguru , Thanks for your solution.

Can anyone help for the following questions?

In January, Peter spent $250 of his salary and saved the rest.In February, he increased his sendings by 20% and his savings decreased by 40%. How much did he save in February?


There were some yellow balls and purple balls in a box.When 36 yellow balls were removed the number of yellow balls was 3/4 of the number purple balls.Later when another 260 purple balls were removed 80% of the balls left in the box were yellow.How many balls were there at first?