solving problems direct or indirect proportion. 1-read the problems 2- decide if it is direct or...

10
SOLVING PROBLEMS Direct or Indirect Proportion

Upload: merilyn-barnett

Post on 16-Dec-2015

214 views

Category:

Documents


2 download

TRANSCRIPT

Page 1: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

SOLVING PROBLEMS

Direct or Indirect Proportion

Page 2: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

1-Read the problems

2- Decide if it is direct or indirect

proportion

3- Solve them

Steps

Page 3: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

1. 44 kg of bananas cost $176. How much would 32 kg cost?

2.  A person gets $980 for 14 days work. How many days should he work to get $2100?

SOLVING PROBLEMS

Page 4: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

3) A car can travel 481 kilometers on 37 liters of gasoline. How much gasoline will it need to go 130 kilometers?

4) If 20 men can build a wall in 6 days, How many men are necessary if they have 12 days for building the same wall?

Page 5: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

5) A car travels 360 km in 60 liters of petrol. How much distance will it cover in 12 liters of petrol?

6)   8 taps having the same rate of flow, fill a tank in 27 minutes. If two taps go out of order, how long will the remaining taps take to fill the tank? 

Page 6: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

7)  If 5 men can build a wall in 6 days. In how many days 10 men will do it?

8) 12 men can paint the wall in 8 hours. How many men will paint the wall in 6 hours?

Page 7: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

9) 14 cows can graze a field in 28 days. How long would 11 cows take to graze the same field? 

10)  If 36 men can do a piece of work in 25 days, in how many days will 15 men do it? 

Page 8: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

11)  A garrison of 500 men had provisions for 24 days. However, a reinforcement of 300 men arrived. The food will now last for _____________?. 

12) If 18 dolls cost $ 630, how many dolls can be bought for $ 455? 

Page 9: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

13)   A hostel has enough food for 125 students for 16 days. How long will the food last if75 more students join them? 

14)  A boat can travel 132 kilometers on 66 liters of gasoline. How much gasoline will it need to go 88 kilometers?

Page 10: SOLVING PROBLEMS Direct or Indirect Proportion. 1-Read the problems 2- Decide if it is direct or indirect proportion 3- Solve them Steps

15) If the weight of 65 coffee packets of the same size is 26 kg. What is the weight of 25 such packets?