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)
Pugal 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 Pugal now
years old
Answer:_______________
2)
Selvan 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 Selvan now
years old
Answer:_______________
3)
Balaji is as old as his cousin now. In 15 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Balaji now
years old
Answer:_______________
4)
Karna 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 Karna now
years old
Answer:_______________
5)
Sriram is as old as his teacher now. In 15 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Sriram now
years old
Answer:_______________
6)
Narayanan is as old as his elder brother now. In 35 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Narayanan now
years old
Answer:_______________
7)
Karna 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 Karna now
years old
Answer:_______________
8)
Sriram 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 Sriram now
years old
Answer:_______________
9)
Chidambaram is as old as his elder sister now. In 28 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Chidambaram now
years old
Answer:_______________
10)
Moorthi is as old as his teacher now. In 11 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Moorthi now
years old
Answer:_______________
1)
Pugal 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 Pugal now
Answer: 5 years old
SOLUTION 1 :
Present
Pugal
:
Elder brother
:
Difference
1
:
3
:
2
25 years' times
Pugal
:
Elder brother
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 1 unit
= 5 units
Step 2:
5 units
= 25
1 unit
= 25 ÷ 5
= 5 years' old
2)
Selvan 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 Selvan now
Answer: 18 years old
SOLUTION 1 :
Present
Selvan
:
Neighbour
:
Difference
3
:
5
:
2
18 years' time
Selvan
:
Neighbour
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 3 units
= 3 units
3 units
= 18 years' old
3)
Balaji is as old as his cousin now. In 15 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Balaji now
Answer: 5 years old
SOLUTION 1 :
Present
Balaji
:
Cousin
:
Difference
1
:
3
:
2
15 years' time
Balaji
:
Cousin
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 1 unit
= 3 units
Step 2:
3 units
= 15
1 unit
= 15 ÷ 3
= 5 years' old
4)
Karna 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 Karna now
Answer: 3 years old
SOLUTION 1 :
Present
Karna
:
Elder sis
:
Difference
1
:
3
:
2
21 years' time
Karna
:
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)
Sriram is as old as his teacher now. In 15 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Sriram now
Answer: 45 years old
SOLUTION 1 :
Present
Sriram
:
Teacher
:
Difference
3
:
5
:
2
15 years' time
Sriram
:
Teacher
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 3 units
= 1 unit
Step 2:
1 unit
= 15
3 units
= 3 x 15
= 45 years' old
6)
Narayanan is as old as his elder brother now. In 35 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Narayanan now
Answer: 7 years old
SOLUTION 1 :
Present
Narayanan
:
Elder brother
:
Difference
1
:
3
:
2
35 years' times
Narayanan
:
Elder brother
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 1 unit
= 5 units
Step 2:
5 units
= 35
1 unit
= 35 ÷ 5
= 7 years' old
7)
Karna 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 Karna now
Answer: 18 years old
SOLUTION 1 :
Present
Karna
:
Neighbour
:
Difference
3
:
5
:
2
18 years' time
Karna
:
Neighbour
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 3 units
= 3 units
3 units
= 18 years' old
8)
Sriram 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 Sriram now
Answer: 9 years old
SOLUTION 1 :
Present
Sriram
:
Cousin
:
Difference
1
:
3
:
2
27 years' time
Sriram
:
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
9)
Chidambaram is as old as his elder sister now. In 28 years' time, the ratio of his age to his elder sister's age will be 4:5. How old is Chidambaram now
Answer: 4 years old
SOLUTION 1 :
Present
Chidambaram
:
Elder sis
:
Difference
1
:
3
:
2
28 years' time
Chidambaram
:
Elder sis
:
Difference
4x2
:
5x2
:
1x2
8
:
10
:
2
Step 1:
8 units - 1 unit
= 7 units
Step 2:
7 units
= 28
1 unit
= 28 ÷ 7
= 4 years' old
10)
Moorthi is as old as his teacher now. In 11 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Moorthi now