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)
Karna is as old as his neighbour now. In 15 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Karna now
years old
Answer:_______________
2)
Balaji is as old as his cousin now. In 18 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Balaji now
years old
Answer:_______________
3)
Barathan 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 Barathan now
years old
Answer:_______________
4)
Moorthi is as old as his teacher now. In 13 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Moorthi now
years old
Answer:_______________
5)
Anand 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 Anand now
years old
Answer:_______________
6)
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:_______________
7)
Pugal is as old as his cousin now. In 12 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Pugal now
years old
Answer:_______________
8)
Murugan is as old as his elder brother now. In 20 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Murugan now
years old
Answer:_______________
9)
Kumar 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 Kumar now
years old
Answer:_______________
10)
Balaji 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 Balaji now
years old
Answer:_______________
1)
Karna is as old as his neighbour now. In 15 years' time, the ratio of his age to his neighbour's age will be 3:4. How old is Karna now
Answer: 15 years old
SOLUTION 1 :
Present
Karna
:
Neighbour
:
Difference
3
:
5
:
2
15 years' time
Karna
:
Neighbour
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 3 units
= 3 units
3 units
= 15 years' old
2)
Balaji is as old as his cousin now. In 18 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Balaji now
Answer: 6 years old
SOLUTION 1 :
Present
Balaji
:
Cousin
:
Difference
1
:
3
:
2
18 years' time
Balaji
:
Cousin
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 1 unit
= 3 units
Step 2:
3 units
= 18
1 unit
= 18 ÷ 3
= 6 years' old
3)
Barathan 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 Barathan now
Answer: 5 years old
SOLUTION 1 :
Present
Barathan
:
Elder brother
:
Difference
1
:
3
:
2
25 years' times
Barathan
:
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
4)
Moorthi is as old as his teacher now. In 13 years' time, the ratio of his age to his teacher's age will be 2:3. How old is Moorthi now
Answer: 39 years old
SOLUTION 1 :
Present
Moorthi
:
Teacher
:
Difference
3
:
5
:
2
13 years' time
Moorthi
:
Teacher
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 3 units
= 1 unit
Step 2:
1 unit
= 13
3 units
= 3 x 13
= 39 years' old
5)
Anand 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 Anand now
Answer: 3 years old
SOLUTION 1 :
Present
Anand
:
Elder sis
:
Difference
1
:
3
:
2
21 years' time
Anand
:
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
6)
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
7)
Pugal is as old as his cousin now. In 12 years' time, the ratio of his age to his cousin's age will be 2:3. How old is Pugal now
Answer: 4 years old
SOLUTION 1 :
Present
Pugal
:
Cousin
:
Difference
1
:
3
:
2
12 years' time
Pugal
:
Cousin
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
Step 1:
4 units - 1 unit
= 3 units
Step 2:
3 units
= 12
1 unit
= 12 ÷ 3
= 4 years' old
8)
Murugan is as old as his elder brother now. In 20 years' time, the ratio of his age to his elder brother's age will be 3:4. How old is Murugan now
Answer: 4 years old
SOLUTION 1 :
Present
Murugan
:
Elder brother
:
Difference
1
:
3
:
2
20 years' times
Murugan
:
Elder brother
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
Step 1:
6 units - 1 unit
= 5 units
Step 2:
5 units
= 20
1 unit
= 20 ÷ 5
= 4 years' old
9)
Kumar 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 Kumar now
Answer: 30 years old
SOLUTION 1 :
Present
Kumar
:
Teacher
:
Difference
3
:
5
:
2
10 years' time
Kumar
:
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
10)
Balaji 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 Balaji now