Question

1) The cost of 8 kg apples is Rs 192. Find the cost of 3 kg apples.
2) 10 boys can dig a pitch in 12 hours. How long will 8 boys take to do it?
3) 40 men can finish a piece of work in 26 days. How many men will be needed to finish it
in 16 days?
4) In an army camp, there were provisions for 425 men for 30 days. How long did the
provisions last for 375 men?
5) In covering 148 km, a car consumes 8 litres of petrol. How many kilometres will it go in
10 litres of petrol?
6) A rail journey of 75 km costs Rs 215. How much will a journey of 120 km cost?
7) In a fort, 550 men had provisions for 28 days. How many days will it last for 700 men?
do it fast

Answer 1

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protractor

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Answer 2

Answer:

1. ₹72

2. 15 hrs

3. 65 men

4. 34 days

5. 185 km

6. ₹344

7. 22 days

Step-by-step explanation:

1. cost of 8 kg apples = ₹192

1 kg apples cost ₹24

3 kg apples cost = 3×24 = ₹72

2. time taken by 10 boys to dig a pitch = 12 hrs

time taken by 1 boy = 12×10 = 120 hrs

time taken by 8 boys = 120/8 = 15 hrs

3. time taken by 40 men to finish the work = 26 days

time taken by 1 man = 26×40 = 1040 days

men needed to finish the work in 16 days = 1040/16

= 65 men

4. provisions for 425 men lasts for 30 days

so for 1 man it will last up to 425×30 days

so for 375 men it will last up tp (425×30)/375

= 34 days.

5. in 8 litres of petrol car travels 148 km

so in 1 litre petrol car will travel 148/8

so in 10 litres of petrol car will travel 148/8 × 10

= 185 km

6. cost of rail journey for 75 km = ₹215

cost of rail journey for 1 km = 215/75

cost of rail journey for 120 km = 215/75 × 120

= ₹344

7. provisions for 550 men will last up to 28 days

provisions for 1 men will last up to 550×28

provisions for 700 men will last up to 550×28 / 700

= 22 days

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