Scroll:Operations >> Numbers >> ps (134)

Written Instructions:

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)  

Kumutha has some 5-gram and 10-gram weights. The weights add up to 145 g. There are 2 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Kumutha have

ten-gram weights

five-gram weights



Answer:_______________




2)  

Thamarai has some 20-cent coins and 50-cent coins. The coins add up to $281.60. There are 8 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Thamarai has 

twenty-cent coins

fifty-cent coins




Answer:_______________




3)  

Savithri has some 5-cent and 10-cent coins. The coins add up to 70 cents. There are 2 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Savithri got

five-cent coins

ten-cent coins


Answer:_______________




4)  

Panimalar has some 5-gram and 10-gram weights. The weights add up to 160 g. There are 5 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Panimalar have

ten-gram weights

five-gram weights



Answer:_______________




5)  

Poongodi has some 20-cent coins and 50-cent coins. The coins add up to $150.80. There are 19 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Poongodi has 

twenty-cent coins

fifty-cent coins




Answer:_______________




6)  

Indra has some 5-cent and 10-cent coins. The coins add up to 125 cents. There are 7 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Indra got

five-cent coins

ten-cent coins


Answer:_______________




7)  

Jeevini has some 5-gram and 10-gram weights. The weights add up to 215 g. There are 4 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Jeevini have

ten-gram weights

five-gram weights



Answer:_______________




8)  

Jeevini has some 20-cent coins and 50-cent coins. The coins add up to $205.60. There are 13 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Jeevini has 

twenty-cent coins

fifty-cent coins




Answer:_______________




9)  

Savithri has some 5-cent and 10-cent coins. The coins add up to 120 cents. There are 3 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Savithri got

five-cent coins

ten-cent coins


Answer:_______________




10)  

Ponnalagu has some 5-gram and 10-gram weights. The weights add up to 120 g. There are 3 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Ponnalagu have

ten-gram weights

five-gram weights



Answer:_______________




 

1)  

Kumutha has some 5-gram and 10-gram weights. The weights add up to 145 g. There are 2 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Kumutha have

Answer: 9 ten-gram weights

Answer: 11 five-gram weights



SOLUTION 1 :

There are 2 more 5-gram weights than 10-gram weights.

 Step 1: The value of the 2 (5-gram weights) → 2 x 5 g
     = 10 g
 Step 2: 145 g - 10 g  = 135 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 135 g ÷ 15 g = 9 (10-gram weights)
 Step 5: 9 + 2  = 11 (5-gram weights)

 

 

 

Kumutha has 11 five-gram weights and 9 ten-gram weights



2)  

Thamarai has some 20-cent coins and 50-cent coins. The coins add up to $281.60. There are 8 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Thamarai has 

Answer: 408 twenty-cent coins

Answer: 400 fifty-cent coins




SOLUTION 1 :

There are 8 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 8 (20-cent coins) → 8 x 20
     = 160 cents
     = $1.60
 Step 2: $281.60 - $1.60  = $280.00
 Step 3: The value of each set of one 20-cent and one 50-cent coins is  = 20 + 50
     = 70 cents (1 set)
     = $0.70
 Step 4: $280.00 ÷ $0.70 = 400 (50-cent coins)
 Step 5: 400 + 8  = 408 (20-cent coins)

 

 Thamarai has 408 twenty-cent coins and 400 fifty-cent coins.



3)  

Savithri has some 5-cent and 10-cent coins. The coins add up to 70 cents. There are 2 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Savithri got

Answer: 6 five-cent coins

Answer: 4 ten-cent coins


SOLUTION 1 :

There are 2 more 5-cent coins then 10-cent coins.

 Step 1: The value of the 2 five-cent coins → 2 x 5
     = 10 cents
 Step 2: 70 cents - 10 cents  = 60 cents
 Step 3: The value of 1 set of 1 five-cent coin and 1 ten-cent coin → 5 cents + 10 cents
     = 15 cents
 Step 4: 60 ÷ 15 cents  = 4 (10-cent coins)
  4 + 2  = 6 (5-cent coins)

 

 Savithri has 6 five-cent coins and 4 ten-cent coins.



4)  

Panimalar has some 5-gram and 10-gram weights. The weights add up to 160 g. There are 5 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Panimalar have

Answer: 9 ten-gram weights

Answer: 14 five-gram weights



SOLUTION 1 :

There are 5 more 5-gram weights than 10-gram weights.

 Step 1: The value of the 5 (5-gram weights) → 5 x 5 g
     = 25 g
 Step 2: 160 g - 25 g  = 135 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 135 g ÷ 15 g = 9 (10-gram weights)
 Step 5: 9 + 5  = 14 (5-gram weights)

 

 

 

Panimalar has 14 five-gram weights and 9 ten-gram weights



5)  

Poongodi has some 20-cent coins and 50-cent coins. The coins add up to $150.80. There are 19 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Poongodi has 

Answer: 229 twenty-cent coins

Answer: 210 fifty-cent coins




SOLUTION 1 :

There are 19 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 19 (20-cent coins) → 19 x 20
     = 380 cents
     = $3.80
 Step 2: $150.80 - $3.80  = $147.00
 Step 3: The value of each set of one 20-cent and one 50-cent coins is  = 20 + 50
     = 70 cents (1 set)
     = $0.70
 Step 4: $147.00 ÷ $0.70 = 210 (50-cent coins)
 Step 5: 210 + 19  = 229 (20-cent coins)

 

 Poongodi has 229 twenty-cent coins and 210 fifty-cent coins.



6)  

Indra has some 5-cent and 10-cent coins. The coins add up to 125 cents. There are 7 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Indra got

Answer: 13 five-cent coins

Answer: 6 ten-cent coins


SOLUTION 1 :

There are 7 more 5-cent coins then 10-cent coins.

 Step 1: The value of the 7 five-cent coins → 7 x 5
     = 35 cents
 Step 2: 125 cents - 35 cents  = 90 cents
 Step 3: The value of 1 set of 1 five-cent coin and 1 ten-cent coin → 5 cents + 10 cents
     = 15 cents
 Step 4: 90 ÷ 15 cents  = 6 (10-cent coins)
  6 + 7  = 13 (5-cent coins)

 

 Indra has 13 five-cent coins and 6 ten-cent coins.



7)  

Jeevini has some 5-gram and 10-gram weights. The weights add up to 215 g. There are 4 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Jeevini have

Answer: 13 ten-gram weights

Answer: 17 five-gram weights



SOLUTION 1 :

There are 4 more 5-gram weights than 10-gram weights.

 Step 1: The value of the 4 (5-gram weights) → 4 x 5 g
     = 20 g
 Step 2: 215 g - 20 g  = 195 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 195 g ÷ 15 g = 13 (10-gram weights)
 Step 5: 13 + 4  = 17 (5-gram weights)

 

 

 

Jeevini has 17 five-gram weights and 13 ten-gram weights



8)  

Jeevini has some 20-cent coins and 50-cent coins. The coins add up to $205.60. There are 13 more 20-cent coins than 50-cent coins.

How many 20-cent coins and 50-cent coins Jeevini has 

Answer: 303 twenty-cent coins

Answer: 290 fifty-cent coins




SOLUTION 1 :

There are 13 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 13 (20-cent coins) → 13 x 20
     = 260 cents
     = $2.60
 Step 2: $205.60 - $2.60  = $203.00
 Step 3: The value of each set of one 20-cent and one 50-cent coins is  = 20 + 50
     = 70 cents (1 set)
     = $0.70
 Step 4: $203.00 ÷ $0.70 = 290 (50-cent coins)
 Step 5: 290 + 13  = 303 (20-cent coins)

 

 Jeevini has 303 twenty-cent coins and 290 fifty-cent coins.



9)  

Savithri has some 5-cent and 10-cent coins. The coins add up to 120 cents. There are 3 more 5-cent coins than 10-cent coins. How many 5-cent coins than 10-cent coins.

How many 5-cent coins and 10-cent coins has Savithri got

Answer: 10 five-cent coins

Answer: 7 ten-cent coins


SOLUTION 1 :

There are 3 more 5-cent coins then 10-cent coins.

 Step 1: The value of the 3 five-cent coins → 3 x 5
     = 15 cents
 Step 2: 120 cents - 15 cents  = 105 cents
 Step 3: The value of 1 set of 1 five-cent coin and 1 ten-cent coin → 5 cents + 10 cents
     = 15 cents
 Step 4: 105 ÷ 15 cents  = 7 (10-cent coins)
  7 + 3  = 10 (5-cent coins)

 

 Savithri has 10 five-cent coins and 7 ten-cent coins.



10)  

Ponnalagu has some 5-gram and 10-gram weights. The weights add up to 120 g. There are 3 more 5-gram weights than 10-gram weights.

How many 5-gram weights and 10-gram weights does Ponnalagu have

Answer: 7 ten-gram weights

Answer: 10 five-gram weights



SOLUTION 1 :

There are 3 more 5-gram weights than 10-gram weights.

 Step 1: The value of the 3 (5-gram weights) → 3 x 5 g
     = 15 g
 Step 2: 120 g - 15 g  = 105 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 105 g ÷ 15 g = 7 (10-gram weights)
 Step 5: 7 + 3  = 10 (5-gram weights)

 

 

 

Ponnalagu has 10 five-gram weights and 7 ten-gram weights