A rope, 100 cm, is cut into three pieces. The first piece is 18 cm longer than the third one. The second piece is 16 cm longer than the first one. How long is each piece of rope ? 

Three years ago, the age of Ben's father was 6 times Ben's age. Their total age is 55 now. How old is Ben now  ?

41 rain trees are planted at regular intervals of 10 m from end to end of a road. How many tembusu trees are planted along the opposite road if they are planted at regular intervals of 8m ? 

A teacher lines 10 boys up in the corridor. 2 girls are then asked to stand between every 2 boys. How many girls are there in the line altogether ? 

10 flags are placed from end to end along one side of a school field. The distance between every two flags is 10 m. How long is the school field ? 

A road measures 50m from end to end. A tree is planted every 5 m long the road. How many trees are planted altogether ? 

The total length of three ropes is 220 cm. The first rope is 20 cm longer than the second one. The third rope is twice the length of the first one. How long is each rope ?

Cindy's mother is four times as old as Cindy.Their total age will be 60 in ten years' time. How old are they now ? 

There are now 96 oranges in two cartons. When 16 oranges were transferred from the first carton to the second one, the number of oranges in the second carton was thrice the number of oranges in the first one. How many oranges were there in each carton at first ?

There are 160 magazines in Library A and Library B. The number of magazines in Library A is thrice that of in Library B. How many magazines are there in each library ?

The sum of Anna’s age and her sister age is 34 years old. Two years ago, her sister was 8 years older than Anna. How old is Anna ?

The sum of Tim age and his mother’s age is 46. Five years ago, his mother was 22 years older than Tim. How old is Tim ?

Marry’s sister is 28 years old. Three years ago, Marry’s sister was more than her 6 years old. How old is Marry ?

Linda’s brother is 34 years old. Six years ago, Linda’s brother age was more than her 12 years old. How old is Linda ?

Andy’s father is 53 years old. After 5 years, Andy’s father age will be 28 years more than Andy’s age. How old is Andy now ?