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)
Murugan is as old as his cousin now. In 24 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Murugan now
years old
Answer:_______________
2)
Sriram is as old as his teacher now. In 10 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Sriram now
years old
Answer:_______________
3)
Aravindh is as old as his neighbour now. In 21 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Aravindh now
years old
Answer:_______________
4)
Moorthi is as old as his elder sister now. In 21 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Moorthi now
years old
Answer:_______________
5)
Karna is as old as his elder brother now. In 30 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Karna now
years old
Answer:_______________
6)
Murugan is as old as his cousin now. In 27 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Murugan now
years old
Answer:_______________
7)
Kumar is as old as his teacher now. In 14 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Kumar now
years old
Answer:_______________
8)
Chidambaram is as old as his neighbour now. In 18 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Chidambaram now
years old
Answer:_______________
9)
Kumar is as old as his elder sister now. In 21 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Kumar now
years old
Answer:_______________
10)
Selvan is as old as his elder brother now. In 25 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Selvan now
years old
Answer:_______________
1)
Murugan is as old as his cousin now. In 24 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Murugan now
Answer: 8 years old
SOLUTION 1 :
Present
Murugan
:
Cousin
:
Difference
1
:
3
:
2
24 years' time
Murugan
:
Cousin
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 1 unit
= 3 units
Step 2:
3 units
= 24
1 unit
= 24 ÷ 3
= 8 years' old
2)
Sriram is as old as his teacher now. In 10 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Sriram now
Answer: 30 years old
SOLUTION 1 :
Present
Sriram
:
Teacher
:
Difference
3
:
5
:
2
10 years' time
Sriram
:
Teacher
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 3 units
= 1 unit
Step 2:
1 unit
= 10
3 units
= 3 x 10
= 30 years' old
3)
Aravindh is as old as his neighbour now. In 21 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Aravindh now
Answer: 21 years old
SOLUTION 1 :
Present
Aravindh
:
Neighbour
:
Difference
3
:
5
:
2
21 years' time
Aravindh
:
Neighbour
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 3 units
= 3 units
3 units
= 21 years' old
4)
Moorthi is as old as his elder sister now. In 21 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Moorthi now
Answer: 3 years old
SOLUTION 1 :
Present
Moorthi
:
Elder sis
:
Difference
1
:
3
:
2
21 years' time
Moorthi
:
Elder sis
:
Difference
4x2
:
5x2
:
1x2
8
:
10
:
2
Step 1:
8 units - 1 unit
= 7 units
Step 2:
7 units
= 21
1 unit
= 21 ÷ 7
= 3 years' old
5)
Karna is as old as his elder brother now. In 30 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Karna now
Answer: 6 years old
SOLUTION 1 :
Present
Karna
:
Elder brother
:
Difference
1
:
3
:
2
30 years' times
Karna
:
Elder brother
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 1 unit
= 5 units
Step 2:
5 units
= 30
1 unit
= 30 ÷ 5
= 6 years' old
6)
Murugan is as old as his cousin now. In 27 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Murugan now
Answer: 9 years old
SOLUTION 1 :
Present
Murugan
:
Cousin
:
Difference
1
:
3
:
2
27 years' time
Murugan
:
Cousin
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 1 unit
= 3 units
Step 2:
3 units
= 27
1 unit
= 27 ÷ 3
= 9 years' old
7)
Kumar is as old as his teacher now. In 14 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Kumar now
Answer: 42 years old
SOLUTION 1 :
Present
Kumar
:
Teacher
:
Difference
3
:
5
:
2
14 years' time
Kumar
:
Teacher
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 3 units
= 1 unit
Step 2:
1 unit
= 14
3 units
= 3 x 14
= 42 years' old
8)
Chidambaram is as old as his neighbour now. In 18 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Chidambaram now
Answer: 18 years old
SOLUTION 1 :
Present
Chidambaram
:
Neighbour
:
Difference
3
:
5
:
2
18 years' time
Chidambaram
:
Neighbour
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 3 units
= 3 units
3 units
= 18 years' old
9)
Kumar is as old as his elder sister now. In 21 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Kumar now
Answer: 3 years old
SOLUTION 1 :
Present
Kumar
:
Elder sis
:
Difference
1
:
3
:
2
21 years' time
Kumar
:
Elder sis
:
Difference
4x2
:
5x2
:
1x2
8
:
10
:
2
Step 1:
8 units - 1 unit
= 7 units
Step 2:
7 units
= 21
1 unit
= 21 ÷ 7
= 3 years' old
10)
Selvan is as old as his elder brother now. In 25 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Selvan now