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)  

Tulasi has some 5-cent and 10-cent coins. The coins add up to 160 cents. There are 8 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 Tulasi got

five-cent coins

ten-cent coins


Answer:_______________




2)  

Panimalar has some 5-gram and 10-gram weights. The weights add up to 130 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:_______________




3)  

Indra has some 20-cent coins and 50-cent coins. The coins add up to $252.60. There are 3 more 20-cent coins than 50-cent coins.

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

twenty-cent coins

fifty-cent coins




Answer:_______________




4)  

Kumutha has some 5-cent and 10-cent coins. The coins add up to 115 cents. There are 5 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 Kumutha got

five-cent coins

ten-cent coins


Answer:_______________




5)  

Selvanayaki has some 5-gram and 10-gram weights. The weights add up to 190 g. There are 2 more 5-gram weights than 10-gram weights.

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

ten-gram weights

five-gram weights



Answer:_______________




6)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $107.40. There are 12 more 20-cent coins than 50-cent coins.

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

twenty-cent coins

fifty-cent coins




Answer:_______________




7)  

Tamilselvi has some 5-cent and 10-cent coins. The coins add up to 235 cents. There are 8 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 Tamilselvi got

five-cent coins

ten-cent coins


Answer:_______________




8)  

Kumutha has some 5-gram and 10-gram weights. The weights add up to 115 g. There are 5 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:_______________




9)  

Pavi has some 20-cent coins and 50-cent coins. The coins add up to $122.40. There are 17 more 20-cent coins than 50-cent coins.

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

twenty-cent coins

fifty-cent coins




Answer:_______________




10)  

Jeevini has some 5-cent and 10-cent coins. The coins add up to 130 cents. There are 5 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 Jeevini got

five-cent coins

ten-cent coins


Answer:_______________




 

1)  

Tulasi has some 5-cent and 10-cent coins. The coins add up to 160 cents. There are 8 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 Tulasi got

Answer: 16 five-cent coins

Answer: 8 ten-cent coins


SOLUTION 1 :

There are 8 more 5-cent coins then 10-cent coins.

 Step 1: The value of the 8 five-cent coins → 8 x 5
     = 40 cents
 Step 2: 160 cents - 40 cents  = 120 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: 120 ÷ 15 cents  = 8 (10-cent coins)
  8 + 8  = 16 (5-cent coins)

 

 Tulasi has 16 five-cent coins and 8 ten-cent coins.



2)  

Panimalar has some 5-gram and 10-gram weights. The weights add up to 130 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: 7 ten-gram weights

Answer: 12 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: 130 g - 25 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 + 5  = 12 (5-gram weights)

 

 

 

Panimalar has 12 five-gram weights and 7 ten-gram weights



3)  

Indra has some 20-cent coins and 50-cent coins. The coins add up to $252.60. There are 3 more 20-cent coins than 50-cent coins.

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

Answer: 363 twenty-cent coins

Answer: 360 fifty-cent coins




SOLUTION 1 :

There are 3 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 3 (20-cent coins) → 3 x 20
     = 60 cents
     = $0.60
 Step 2: $252.60 - $0.60  = $252.00
 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: $252.00 ÷ $0.70 = 360 (50-cent coins)
 Step 5: 360 + 3  = 363 (20-cent coins)

 

 Indra has 363 twenty-cent coins and 360 fifty-cent coins.



4)  

Kumutha has some 5-cent and 10-cent coins. The coins add up to 115 cents. There are 5 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 Kumutha got

Answer: 11 five-cent coins

Answer: 6 ten-cent coins


SOLUTION 1 :

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

 Step 1: The value of the 5 five-cent coins → 5 x 5
     = 25 cents
 Step 2: 115 cents - 25 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 + 5  = 11 (5-cent coins)

 

 Kumutha has 11 five-cent coins and 6 ten-cent coins.



5)  

Selvanayaki has some 5-gram and 10-gram weights. The weights add up to 190 g. There are 2 more 5-gram weights than 10-gram weights.

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

Answer: 12 ten-gram weights

Answer: 14 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: 190 g - 10 g  = 180 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 180 g ÷ 15 g = 12 (10-gram weights)
 Step 5: 12 + 2  = 14 (5-gram weights)

 

 

 

Selvanayaki has 14 five-gram weights and 12 ten-gram weights



6)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $107.40. There are 12 more 20-cent coins than 50-cent coins.

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

Answer: 162 twenty-cent coins

Answer: 150 fifty-cent coins




SOLUTION 1 :

There are 12 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 12 (20-cent coins) → 12 x 20
     = 240 cents
     = $2.40
 Step 2: $107.40 - $2.40  = $105.00
 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: $105.00 ÷ $0.70 = 150 (50-cent coins)
 Step 5: 150 + 12  = 162 (20-cent coins)

 

 Chellamal has 162 twenty-cent coins and 150 fifty-cent coins.



7)  

Tamilselvi has some 5-cent and 10-cent coins. The coins add up to 235 cents. There are 8 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 Tamilselvi got

Answer: 21 five-cent coins

Answer: 13 ten-cent coins


SOLUTION 1 :

There are 8 more 5-cent coins then 10-cent coins.

 Step 1: The value of the 8 five-cent coins → 8 x 5
     = 40 cents
 Step 2: 235 cents - 40 cents  = 195 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: 195 ÷ 15 cents  = 13 (10-cent coins)
  13 + 8  = 21 (5-cent coins)

 

 Tamilselvi has 21 five-cent coins and 13 ten-cent coins.



8)  

Kumutha has some 5-gram and 10-gram weights. The weights add up to 115 g. There are 5 more 5-gram weights than 10-gram weights.

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

Answer: 6 ten-gram weights

Answer: 11 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: 115 g - 25 g  = 90 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 90 g ÷ 15 g = 6 (10-gram weights)
 Step 5: 6 + 5  = 11 (5-gram weights)

 

 

 

Kumutha has 11 five-gram weights and 6 ten-gram weights



9)  

Pavi has some 20-cent coins and 50-cent coins. The coins add up to $122.40. There are 17 more 20-cent coins than 50-cent coins.

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

Answer: 187 twenty-cent coins

Answer: 170 fifty-cent coins




SOLUTION 1 :

There are 17 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 17 (20-cent coins) → 17 x 20
     = 340 cents
     = $3.40
 Step 2: $122.40 - $3.40  = $119.00
 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: $119.00 ÷ $0.70 = 170 (50-cent coins)
 Step 5: 170 + 17  = 187 (20-cent coins)

 

 Pavi has 187 twenty-cent coins and 170 fifty-cent coins.



10)  

Jeevini has some 5-cent and 10-cent coins. The coins add up to 130 cents. There are 5 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 Jeevini got

Answer: 12 five-cent coins

Answer: 7 ten-cent coins


SOLUTION 1 :

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

 Step 1: The value of the 5 five-cent coins → 5 x 5
     = 25 cents
 Step 2: 130 cents - 25 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 + 5  = 12 (5-cent coins)

 

 Jeevini has 12 five-cent coins and 7 ten-cent coins.