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)
The ratio of Chidambaram's age to his father's age is 2:3. 13 years ago, the ratio would be 3:5 respectively. How old is Chidambaram now
years old
Answer:_______________
2)
The ratio of Sriram's age to his mother's age is 1:2. 16 years ago, the ratio would be 1:3 respectively. How old is Sriram now
years old
Answer:_______________
3)
The ratio of Chidambaram's age to his father's age is 1:2. 22 years ago, the ratio would be 1:4 respectively. How old is Chidambaram now
years old
Answer:_______________
4)
The ratio of Murugan's age to his father's age is 3:4. 44 years ago, the ratio would be 1:2 respectively. How old is Murugan now
years old
Answer:_______________
5)
The ratio of John's age to his father's age is 2:3. 12 years ago, the ratio would be 3:5 respectively. How old is John now
years old
Answer:_______________
6)
The ratio of Aravindh's age to his father's age is 3:4. 36 years ago, the ratio would be 3:5 respectively. How old is Aravindh now
years old
Answer:_______________
7)
The ratio of Moorthi's age to his father's age is 2:3. 13 years ago, the ratio would be 3:5 respectively. How old is Moorthi now
years old
Answer:_______________
8)
The ratio of Moorthi's age to his mother's age is 1:2. 16 years ago, the ratio would be 1:3 respectively. How old is Moorthi now
years old
Answer:_______________
9)
The ratio of Chidambaram's age to his father's age is 1:2. 18 years ago, the ratio would be 1:4 respectively. How old is Chidambaram now
years old
Answer:_______________
10)
The ratio of Anand's age to his father's age is 3:4. 44 years ago, the ratio would be 1:2 respectively. How old is Anand now
years old
Answer:_______________
1)
The ratio of Chidambaram's age to his father's age is 2:3. 13 years ago, the ratio would be 3:5 respectively. How old is Chidambaram now
Answer: 52 years old
SOLUTION 1 :
Present
Chidambaram
:
Father
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
13 years' ago
Chidambaram
:
Father
:
Difference
3
:
5
:
2
Step 1:
4 units - 3 units
= 1 unit
1 unit
= 13
Step 2:
4 units
= 4 x 13
= 52 years' old
2)
The ratio of Sriram's age to his mother's age is 1:2. 16 years ago, the ratio would be 1:3 respectively. How old is Sriram now
Answer: 32 years old
SOLUTION 1 :
Present
Sriram
:
Mother
:
Difference
1x2
:
2x2
:
1x2
2
:
4
:
2
16 years' ago
Sriram
:
Mother
:
Difference
1
:
3
:
2
Step 1:
2 units - 1 unit
= 1 unit
1 unit
= 16
Step 2:
2 units
= 2 x 16
= 32 years' old
3)
The ratio of Chidambaram's age to his father's age is 1:2. 22 years ago, the ratio would be 1:4 respectively. How old is Chidambaram now
Answer: 33 years old
SOLUTION 1 :
Present
Chidambaram
:
Father
:
Difference
1x3
:
2x3
:
1x3
3
:
6
:
3
22 years' ago
Chidambaram
:
Father
:
Difference
1
:
4
:
3
Step 1:
3 units - 1 unit
= 2 unit
2 unit
= 22
Step 2:
1 unit
= 22 ÷ 2
= 11 years' old
Step 3:
3 units
= 3 x 11
= 33 years' old
4)
The ratio of Murugan's age to his father's age is 3:4. 44 years ago, the ratio would be 1:2 respectively. How old is Murugan now
Answer: 66 years old
SOLUTION 1 :
Present
Murugan
:
Father
:
Difference
3
:
4
:
1
44 years' ago
Murugan
:
Father
:
Difference
1
:
2
:
1
Step 1:
3 units - 1 unit
= 2 units
Step 2:
2 units
= 44
1 unit
= 44 ÷ 2
= 22
Step 3:
3 units
= 3 x 22
= 66 years' old
5)
The ratio of John's age to his father's age is 2:3. 12 years ago, the ratio would be 3:5 respectively. How old is John now
Answer: 48 years old
SOLUTION 1 :
Present
J
F
Difference
2x2
3x2
1x2
4
6
2
Past
J
F
Difference
3
5
2
Step 1: 4 - 3 = 1 unit
Step 2: 12 x 4 = 48
Answer: 48 years old
6)
The ratio of Aravindh's age to his father's age is 3:4. 36 years ago, the ratio would be 3:5 respectively. How old is Aravindh now
Answer: 72 years old
SOLUTION 1 :
Present
Aravindh
:
Father
:
Difference
3x2
:
4x2
:
1x2
6
:
8
:
2
36 years' ago
Aravindh
:
Father
:
Difference
3
:
5
:
2
Step 1:
6 units - 3 units
= 3 units
Step 2:
3 units
= 36
1 unit
= 36 ÷ 3
= 12
Step 3:
6 units
= 6 x 12
= 72 years' old
7)
The ratio of Moorthi's age to his father's age is 2:3. 13 years ago, the ratio would be 3:5 respectively. How old is Moorthi now
Answer: 52 years old
SOLUTION 1 :
Present
Moorthi
:
Father
:
Difference
2x2
:
3x2
:
1x2
4
:
6
:
2
13 years' ago
Moorthi
:
Father
:
Difference
3
:
5
:
2
Step 1:
4 units - 3 units
= 1 unit
1 unit
= 13
Step 2:
4 units
= 4 x 13
= 52 years' old
8)
The ratio of Moorthi's age to his mother's age is 1:2. 16 years ago, the ratio would be 1:3 respectively. How old is Moorthi now
Answer: 32 years old
SOLUTION 1 :
Present
Moorthi
:
Mother
:
Difference
1x2
:
2x2
:
1x2
2
:
4
:
2
16 years' ago
Moorthi
:
Mother
:
Difference
1
:
3
:
2
Step 1:
2 units - 1 unit
= 1 unit
1 unit
= 16
Step 2:
2 units
= 2 x 16
= 32 years' old
9)
The ratio of Chidambaram's age to his father's age is 1:2. 18 years ago, the ratio would be 1:4 respectively. How old is Chidambaram now
Answer: 27 years old
SOLUTION 1 :
Present
Chidambaram
:
Father
:
Difference
1x3
:
2x3
:
1x3
3
:
6
:
3
18 years' ago
Chidambaram
:
Father
:
Difference
1
:
4
:
3
Step 1:
3 units - 1 unit
= 2 unit
2 unit
= 18
Step 2:
1 unit
= 18 ÷ 2
= 9 years' old
Step 3:
3 units
= 3 x 9
= 27 years' old
10)
The ratio of Anand's age to his father's age is 3:4. 44 years ago, the ratio would be 1:2 respectively. How old is Anand now