Scroll:Measurement >> Time >> ps (710)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 10 years older than Lena.
How old is Jack now

years old


Answer:_______________




2)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 6 years older than Lena.
How old is Jack now

years old


Answer:_______________




3)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 8 years older than Lena.
How old is Jack now

years old


Answer:_______________




4)  

Two years ago, Jack's age was half of Lena's.
Mark is 22 years old now and he is 4 years older than Lena.
How old is Jack now

years old


Answer:_______________




5)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 4 years older than Lena.
How old is Jack now

years old


Answer:_______________




6)  

Two years ago, Jack's age was half of Lena's.
Mark is 30 years old now and he is 8 years older than Lena.
How old is Jack now

years old


Answer:_______________




7)  

Two years ago, Jack's age was half of Lena's.
Mark is 24 years old now and he is 8 years older than Lena.
How old is Jack now

years old


Answer:_______________




8)  

Two years ago, Jack's age was half of Lena's.
Mark is 28 years old now and he is 8 years older than Lena.
How old is Jack now

years old


Answer:_______________




9)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 6 years older than Lena.
How old is Jack now

years old


Answer:_______________




10)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 8 years older than Lena.
How old is Jack now

years old


Answer:_______________




 

1)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 10 years older than Lena.
How old is Jack now

Answer: 6 years old


SOLUTION 1 :

Step 1: Lena's age now: 20 - 10 = 10

Step 2: Lena's age 2 years ago: 10 - 2 = 8

Step 3: Jack's age 2 years ago: 8 ÷ 2 = 4

Step 4: Jack's age now: 4 + 2 = 6



2)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 6 years older than Lena.
How old is Jack now

Answer: 8 years old


SOLUTION 1 :

Step 1: Lena's age now: 20 - 6 = 14

Step 2: Lena's age 2 years ago: 14 - 2 = 12

Step 3: Jack's age 2 years ago: 12 ÷ 2 = 6

Step 4: Jack's age now: 6 + 2 = 8



3)  

Two years ago, Jack's age was half of Lena's.
Mark is 20 years old now and he is 8 years older than Lena.
How old is Jack now

Answer: 7 years old


SOLUTION 1 :

Step 1: Lena's age now: 20 - 8 = 12

Step 2: Lena's age 2 years ago: 12 - 2 = 10

Step 3: Jack's age 2 years ago: 10 ÷ 2 = 5

Step 4: Jack's age now: 5 + 2 = 7



4)  

Two years ago, Jack's age was half of Lena's.
Mark is 22 years old now and he is 4 years older than Lena.
How old is Jack now

Answer: 10 years old


SOLUTION 1 :

Step 1: Lena's age now: 22 - 4 = 18

Step 2: Lena's age 2 years ago: 18 - 2 = 16

Step 3: Jack's age 2 years ago: 16 ÷ 2 = 8

Step 4: Jack's age now: 8 + 2 = 10



5)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 4 years older than Lena.
How old is Jack now

Answer: 12 years old


SOLUTION 1 :

Step 1: Lena's age now: 26 - 4 = 22

Step 2: Lena's age 2 years ago: 22 - 2 = 20

Step 3: Jack's age 2 years ago: 20 ÷ 2 = 10

Step 4: Jack's age now: 10 + 2 = 12



6)  

Two years ago, Jack's age was half of Lena's.
Mark is 30 years old now and he is 8 years older than Lena.
How old is Jack now

Answer: 12 years old


SOLUTION 1 :

Step 1: Lena's age now: 30 - 8 = 22

Step 2: Lena's age 2 years ago: 22 - 2 = 20

Step 3: Jack's age 2 years ago: 20 ÷ 2 = 10

Step 4: Jack's age now: 10 + 2 = 12



7)  

Two years ago, Jack's age was half of Lena's.
Mark is 24 years old now and he is 8 years older than Lena.
How old is Jack now

Answer: 9 years old


SOLUTION 1 :

Step 1: Lena's age now: 24 - 8 = 16

Step 2: Lena's age 2 years ago: 16 - 2 = 14

Step 3: Jack's age 2 years ago: 14 ÷ 2 = 7

Step 4: Jack's age now: 7 + 2 = 9



8)  

Two years ago, Jack's age was half of Lena's.
Mark is 28 years old now and he is 8 years older than Lena.
How old is Jack now

Answer: 11 years old


SOLUTION 1 :

Step 1: Lena's age now: 28 - 8 = 20

Step 2: Lena's age 2 years ago: 20 - 2 = 18

Step 3: Jack's age 2 years ago: 18 ÷ 2 = 9

Step 4: Jack's age now: 9 + 2 = 11



9)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 6 years older than Lena.
How old is Jack now

Answer: 11 years old


SOLUTION 1 :

Step 1: Lena's age now: 26 - 6 = 20

Step 2: Lena's age 2 years ago: 20 - 2 = 18

Step 3: Jack's age 2 years ago: 18 ÷ 2 = 9

Step 4: Jack's age now: 9 + 2 = 11



10)  

Two years ago, Jack's age was half of Lena's.
Mark is 26 years old now and he is 8 years older than Lena.
How old is Jack now

Answer: 10 years old


SOLUTION 1 :

Step 1: Lena's age now: 26 - 8 = 18

Step 2: Lena's age 2 years ago: 18 - 2 = 16

Step 3: Jack's age 2 years ago: 16 ÷ 2 = 8

Step 4: Jack's age now: 8 + 2 = 10