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)
Chellamal was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:4. On the second day, she fixed another 35 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer:_______________
2)
Sriram was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 2:4. On the second day, he fixed another 74 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer:_______________
3)
Murugan was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 1:4. On the second day, he fixed another 54 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 2:5. How many pieces did the puzzle consist of
Answer:_______________
4)
Ponnalagu was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:2. On the second day, she fixed another 66 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer:_______________
5)
Ponnalagu was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 2:3. On the second day, she fixed another 38 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer:_______________
6)
Haritha was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:4. On the second day, she fixed another 42 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer:_______________
7)
Karna was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 2:4. On the second day, he fixed another 72 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer:_______________
8)
Raj was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 1:4. On the second day, he fixed another 99 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 2:5. How many pieces did the puzzle consist of
Answer:_______________
9)
Chithra was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:2. On the second day, she fixed another 21 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer:_______________
10)
Chellamal was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 2:3. On the second day, she fixed another 20 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer:_______________
1)
Chellamal was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:4. On the second day, she fixed another 35 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer: 200
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
4
8
:
32
After
Fixed
:
Unfixed
3
:
5
15
:
25
Step 1:
15 units - 8 units
= 7 units
Step 2:
7 units
= 35
1 unit
= 35 ÷ 7
= 5
Step 3:
8 units + 32 units
= 40 units
Step 4:
40 units
= 40 x 5
= 200
2)
Sriram was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 2:4. On the second day, he fixed another 74 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer: 1776
SOLUTION 1 :
Before
Fixed
:
Unfixed
2
:
4
16
:
32
After
Fixed
:
Unfixed
3
:
5
18
:
30
Step 1:
18 units - 16 units
= 2 units
Step 2:
2 units
= 74
1 unit
= 74 ÷ 2
= 37
Step 3:
16 units + 32 units
= 48 units
Step 4:
48 units
= 48 x 37
= 1776
3)
Murugan was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 1:4. On the second day, he fixed another 54 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 2:5. How many pieces did the puzzle consist of
Answer: 630
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
4
7
:
28
After
Fixed
:
Unfixed
2
:
5
10
:
25
Step 1:
10 units - 7 units
= 3 units
Step 2:
3 units
= 54
1 unit
= 54 ÷ 3
= 18
Step 3:
7 units + 28 units
= 35 units
Step 4:
35 units
= 35 x 18
= 630
4)
Ponnalagu was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:2. On the second day, she fixed another 66 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer: 594
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
2
9
:
18
After
Fixed
:
Unfixed
4
:
5
12
:
15
Step 1:
12 units - 9 units
= 3 units
Step 2:
3 units
= 66
1 unit
= 66 ÷ 3
= 22
Step 3:
9 units + 18 units
= 27 units
Step 4:
27 units
= 27 x 22
= 594
5)
Ponnalagu was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 2:3. On the second day, she fixed another 38 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer: 855
SOLUTION 1 :
Before
Fixed
:
Unfixed
2
:
3
18
:
27
After
Fixed
:
Unfixed
4
:
5
20
:
25
Step 1:
20 units - 18 units
= 2 units
Step 2:
2 units
= 38
1 unit
= 38 ÷ 2
= 19
Step 3:
18 units + 27 units
= 45 units
Step 4:
45 units
= 45 x 19
= 855
6)
Haritha was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:4. On the second day, she fixed another 42 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer: 240
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
4
8
:
32
After
Fixed
:
Unfixed
3
:
5
15
:
25
Step 1:
15 units - 8 units
= 7 units
Step 2:
7 units
= 42
1 unit
= 42 ÷ 7
= 6
Step 3:
8 units + 32 units
= 40 units
Step 4:
40 units
= 40 x 6
= 240
7)
Karna was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 2:4. On the second day, he fixed another 72 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 3:5. How many pieces did the puzzle consist of
Answer: 1728
SOLUTION 1 :
Before
Fixed
:
Unfixed
2
:
4
16
:
32
After
Fixed
:
Unfixed
3
:
5
18
:
30
Step 1:
18 units - 16 units
= 2 units
Step 2:
2 units
= 72
1 unit
= 72 ÷ 2
= 36
Step 3:
16 units + 32 units
= 48 units
Step 4:
48 units
= 48 x 36
= 1728
8)
Raj was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces he fixed to the number of pieces unfixed was 1:4. On the second day, he fixed another 99 pieces of the puzzle. As a result, the ratio of the number of pieces he fixed to the number of pieces unfixed became 2:5. How many pieces did the puzzle consist of
Answer: 1155
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
4
7
:
28
After
Fixed
:
Unfixed
2
:
5
10
:
25
Step 1:
10 units - 7 units
= 3 units
Step 2:
3 units
= 99
1 unit
= 99 ÷ 3
= 33
Step 3:
7 units + 28 units
= 35 units
Step 4:
35 units
= 35 x 33
= 1155
9)
Chithra was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 1:2. On the second day, she fixed another 21 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of
Answer: 189
SOLUTION 1 :
Before
Fixed
:
Unfixed
1
:
2
9
:
18
After
Fixed
:
Unfixed
4
:
5
12
:
15
Step 1:
12 units - 9 units
= 3 units
Step 2:
3 units
= 21
1 unit
= 21 ÷ 3
= 7
Step 3:
9 units + 18 units
= 27 units
Step 4:
27 units
= 27 x 7
= 189
10)
Chellamal was fixing a jigsaw puzzle. On the first day, the ratio of the number of pieces she fixed to the number of pieces unfixed was 2:3. On the second day, she fixed another 20 pieces of the puzzle. As a result, the ratio of the number of pieces she fixed to the number of pieces unfixed became 4:5. How many pieces did the puzzle consist of