Scroll:Algebra >> Term III Ex 1.2 >> saq (4459)


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)  

 9 years ago, I was 27 years old. How old am I now


My present age is


Answer:_______________




2)  

 9 years ago, I was 20 years old. How old am I now


My present age is


Answer:_______________




3)  

 9 years ago, I was 26 years old. How old am I now


My present age is


Answer:_______________




4)  

 7 years ago, I was 26 years old. How old am I now


My present age is


Answer:_______________




5)  

 8 years ago, I was 24 years old. How old am I now


My present age is


Answer:_______________




6)  

 6 years ago, I was 23 years old. How old am I now


My present age is


Answer:_______________




7)  

 6 years ago, I was 20 years old. How old am I now


My present age is


Answer:_______________




8)  

 8 years ago, I was 28 years old. How old am I now


My present age is


Answer:_______________




9)  

 7 years ago, I was 22 years old. How old am I now


My present age is


Answer:_______________




10)  

 10 years ago, I was 29 years old. How old am I now


My present age is


Answer:_______________




 

1)  

 9 years ago, I was 27 years old. How old am I now


My present age is

Answer: 36


SOLUTION 1 :

Let my present age be

9 years ago, my age was x - 9

Given,

x - 9 = 27

         x = 27 + 9     ( on transposing - 9, becomes + 9 )

    ⇒  x = 36.

Hence, my present age is 36.



2)  

 9 years ago, I was 20 years old. How old am I now


My present age is

Answer: 29


SOLUTION 1 :

Let my present age be

9 years ago, my age was y - 9

Given,

y - 9 = 20

         y = 20 + 9     ( on transposing - 9, becomes + 9 )

    ⇒  y = 29.

Hence, my present age is 29.



3)  

 9 years ago, I was 26 years old. How old am I now


My present age is

Answer: 35


SOLUTION 1 :

Let my present age be

9 years ago, my age was x - 9

Given,

x - 9 = 26

         x = 26 + 9     ( on transposing - 9, becomes + 9 )

    ⇒  x = 35.

Hence, my present age is 35.



4)  

 7 years ago, I was 26 years old. How old am I now


My present age is

Answer: 33


SOLUTION 1 :

Let my present age be

7 years ago, my age was x - 7

Given,

x - 7 = 26

         x = 26 + 7     ( on transposing - 7, becomes + 7 )

    ⇒  x = 33.

Hence, my present age is 33.



5)  

 8 years ago, I was 24 years old. How old am I now


My present age is

Answer: 32


SOLUTION 1 :

Let my present age be

8 years ago, my age was y - 8

Given,

y - 8 = 24

         y = 24 + 8     ( on transposing - 8, becomes + 8 )

    ⇒  y = 32.

Hence, my present age is 32.



6)  

 6 years ago, I was 23 years old. How old am I now


My present age is

Answer: 29


SOLUTION 1 :

Let my present age be

6 years ago, my age was x - 6

Given,

x - 6 = 23

         x = 23 + 6     ( on transposing - 6, becomes + 6 )

    ⇒  x = 29.

Hence, my present age is 29.



7)  

 6 years ago, I was 20 years old. How old am I now


My present age is

Answer: 26


SOLUTION 1 :

Let my present age be

6 years ago, my age was y - 6

Given,

y - 6 = 20

         y = 20 + 6     ( on transposing - 6, becomes + 6 )

    ⇒  y = 26.

Hence, my present age is 26.



8)  

 8 years ago, I was 28 years old. How old am I now


My present age is

Answer: 36


SOLUTION 1 :

Let my present age be

8 years ago, my age was y - 8

Given,

y - 8 = 28

         y = 28 + 8     ( on transposing - 8, becomes + 8 )

    ⇒  y = 36.

Hence, my present age is 36.



9)  

 7 years ago, I was 22 years old. How old am I now


My present age is

Answer: 29


SOLUTION 1 :

Let my present age be

7 years ago, my age was x - 7

Given,

x - 7 = 22

         x = 22 + 7     ( on transposing - 7, becomes + 7 )

    ⇒  x = 29.

Hence, my present age is 29.



10)  

 10 years ago, I was 29 years old. How old am I now


My present age is

Answer: 39


SOLUTION 1 :

Let my present age be

10 years ago, my age was y - 10

Given,

y - 10 = 29

         y = 29 + 10     ( on transposing - 10, becomes + 10 )

    ⇒  y = 39.

Hence, my present age is 39.