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)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $190.80. There are 9 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:_______________




2)  

Poovazhagi has some 5-gram and 10-gram weights. The weights add up to 175 g. There are 5 more 5-gram weights than 10-gram weights.

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

ten-gram weights

five-gram weights



Answer:_______________




3)  

Parveen has some 5-cent and 10-cent coins. The coins add up to 110 cents. There are 10 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 Parveen got

five-cent coins

ten-cent coins


Answer:_______________




4)  

Tulasi has some 20-cent coins and 50-cent coins. The coins add up to $295.80. There are 9 more 20-cent coins than 50-cent coins.

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

twenty-cent coins

fifty-cent coins




Answer:_______________




5)  

Pavi has some 5-gram and 10-gram weights. The weights add up to 160 g. There are 2 more 5-gram weights than 10-gram weights.

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

ten-gram weights

five-gram weights



Answer:_______________




6)  

Panimalar has some 5-cent and 10-cent coins. The coins add up to 205 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 Panimalar got

five-cent coins

ten-cent coins


Answer:_______________




7)  

Ponnalagu has some 20-cent coins and 50-cent coins. The coins add up to $119.80. There are 4 more 20-cent coins than 50-cent coins.

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

twenty-cent coins

fifty-cent coins




Answer:_______________




8)  

Ramani has some 5-gram and 10-gram weights. The weights add up to 135 g. There are 3 more 5-gram weights than 10-gram weights.

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

ten-gram weights

five-gram weights



Answer:_______________




9)  

Mithra has some 5-cent and 10-cent coins. The coins add up to 190 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 Mithra got

five-cent coins

ten-cent coins


Answer:_______________




10)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $180.00. There are 25 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:_______________




 

1)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $190.80. There are 9 more 20-cent coins than 50-cent coins.

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

Answer: 279 twenty-cent coins

Answer: 270 fifty-cent coins




SOLUTION 1 :

There are 9 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 9 (20-cent coins) → 9 x 20
     = 180 cents
     = $1.80
 Step 2: $190.80 - $1.80  = $189.00
 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: $189.00 ÷ $0.70 = 270 (50-cent coins)
 Step 5: 270 + 9  = 279 (20-cent coins)

 

 Chellamal has 279 twenty-cent coins and 270 fifty-cent coins.



2)  

Poovazhagi has some 5-gram and 10-gram weights. The weights add up to 175 g. There are 5 more 5-gram weights than 10-gram weights.

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

Answer: 10 ten-gram weights

Answer: 15 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: 175 g - 25 g  = 150 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 150 g ÷ 15 g = 10 (10-gram weights)
 Step 5: 10 + 5  = 15 (5-gram weights)

 

 

 

Poovazhagi has 15 five-gram weights and 10 ten-gram weights



3)  

Parveen has some 5-cent and 10-cent coins. The coins add up to 110 cents. There are 10 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 Parveen got

Answer: 14 five-cent coins

Answer: 4 ten-cent coins


SOLUTION 1 :

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

 Step 1: The value of the 10 five-cent coins → 10 x 5
     = 50 cents
 Step 2: 110 cents - 50 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 + 10  = 14 (5-cent coins)

 

 Parveen has 14 five-cent coins and 4 ten-cent coins.



4)  

Tulasi has some 20-cent coins and 50-cent coins. The coins add up to $295.80. There are 9 more 20-cent coins than 50-cent coins.

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

Answer: 429 twenty-cent coins

Answer: 420 fifty-cent coins




SOLUTION 1 :

There are 9 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 9 (20-cent coins) → 9 x 20
     = 180 cents
     = $1.80
 Step 2: $295.80 - $1.80  = $294.00
 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: $294.00 ÷ $0.70 = 420 (50-cent coins)
 Step 5: 420 + 9  = 429 (20-cent coins)

 

 Tulasi has 429 twenty-cent coins and 420 fifty-cent coins.



5)  

Pavi has some 5-gram and 10-gram weights. The weights add up to 160 g. There are 2 more 5-gram weights than 10-gram weights.

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

Answer: 10 ten-gram weights

Answer: 12 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: 160 g - 10 g  = 150 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 150 g ÷ 15 g = 10 (10-gram weights)
 Step 5: 10 + 2  = 12 (5-gram weights)

 

 

 

Pavi has 12 five-gram weights and 10 ten-gram weights



6)  

Panimalar has some 5-cent and 10-cent coins. The coins add up to 205 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 Panimalar got

Answer: 15 five-cent coins

Answer: 13 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: 205 cents - 10 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 + 2  = 15 (5-cent coins)

 

 Panimalar has 15 five-cent coins and 13 ten-cent coins.



7)  

Ponnalagu has some 20-cent coins and 50-cent coins. The coins add up to $119.80. There are 4 more 20-cent coins than 50-cent coins.

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

Answer: 174 twenty-cent coins

Answer: 170 fifty-cent coins




SOLUTION 1 :

There are 4 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 4 (20-cent coins) → 4 x 20
     = 80 cents
     = $0.80
 Step 2: $119.80 - $0.80  = $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 + 4  = 174 (20-cent coins)

 

 Ponnalagu has 174 twenty-cent coins and 170 fifty-cent coins.



8)  

Ramani has some 5-gram and 10-gram weights. The weights add up to 135 g. There are 3 more 5-gram weights than 10-gram weights.

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

Answer: 8 ten-gram weights

Answer: 11 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: 135 g - 15 g  = 120 g
 Step 3: 5 g + 10 g  = 15 g (1 set)
 Step 4: 120 g ÷ 15 g = 8 (10-gram weights)
 Step 5: 8 + 3  = 11 (5-gram weights)

 

 

 

Ramani has 11 five-gram weights and 8 ten-gram weights



9)  

Mithra has some 5-cent and 10-cent coins. The coins add up to 190 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 Mithra got

Answer: 18 five-cent coins

Answer: 10 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: 190 cents - 40 cents  = 150 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: 150 ÷ 15 cents  = 10 (10-cent coins)
  10 + 8  = 18 (5-cent coins)

 

 Mithra has 18 five-cent coins and 10 ten-cent coins.



10)  

Chellamal has some 20-cent coins and 50-cent coins. The coins add up to $180.00. There are 25 more 20-cent coins than 50-cent coins.

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

Answer: 275 twenty-cent coins

Answer: 250 fifty-cent coins




SOLUTION 1 :

There are 25 more 20-cent coins than 50-cent coins.

 Step 1: The value of the 25 (20-cent coins) → 25 x 20
     = 500 cents
     = $5.00
 Step 2: $180.00 - $5.00  = $175.00
 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: $175.00 ÷ $0.70 = 250 (50-cent coins)
 Step 5: 250 + 25  = 275 (20-cent coins)

 

 Chellamal has 275 twenty-cent coins and 250 fifty-cent coins.