Direct and Inverse Variation - ICSE STD 8 MATHS Questions

If 5 labourers earn $₹ 9000$ in 15 days, how many labourers can earn $₹ 6720$ in 8 days?

If 5 men or 7 women can earn $₹ 700$ per day, how much would 7 men and 11 women earn per day?

In a zoo, 28 parrots consume 7420 g of nuts in a day. If 8 parrots are sent to another zoo, what quantity of nuts will be required in a day?

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Q 4[1 Mark Question Answer]1 Mark

If the cost of 40 toys is $₹ 1024$, what is the cost of one dozen such toys?

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Q 5[2 Mark Question Answer]2 Marks

13 men can weave 117 baskets in a week. How many men will be needed to weave 189 baskets in 3 days?

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Q 6[2 Mark Question Answer]2 Marks

If a car covers 56.7 km in 4.5 litres of petrol, how many kilometres will it cover in 26 litres of petrol?

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Q 7[2 Mark Question Answer]2 Marks

If a labourer earns ₹ 784 per week, how much will he earn in 15 days?

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Q 8[2 Mark Question Answer]2 Marks

If 45 iron rods of the same size weigh 12.6 kg , how much is the weight of 24 such rods?

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Q 9[2 Mark Question Answer]2 Marks

If 50 pencils can be bought for $₹ 120$, how many pencils can be bought for $₹ 108$ ?

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Q 10[3 marks sum]3 Marks

A journey by car takes 48 minutes at 65 kmph . How fast must the car go to finish the journey in 40 minutes?

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Q 11[3 marks sum]3 Marks

15 men can do a piece of work in 36 hours. How many men will be required to finish the work in 20 hours?

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Q 12TRUE / FALSE1 Mark

The number of men and the time taken by them to do a job are in inverse proportion. __________

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Q 13TRUE / FALSE1 Mark

The speed and distance covered are in direct proportion. __________

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Q 14TRUE / FALSE1 Mark

3 persons can build a wall in 4 days. Then 4 persons can build it in $3 \frac{1}{4}$ days. __________

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Q 15TRUE / FALSE1 Mark

When $x$ and $y$ are in inverse proportion, then $x_1 y_2=x_2 y_1$. __________

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Q 16fill in the blanks.1 Mark

6 pipes can fill a tank in 120 minutes. Then, 5 pipes will fill it in __________ minutes.

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Q 17fill in the blanks.1 Mark

If 8 oranges cost $₹ 52$, then the number of oranges that can be bought for $₹ 169$ is __________ .

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Q 18fill in the blanks.1 Mark

If $m$ articles cost $₹ n$ in all, then the total cost of $n$ articles is ₹ __________ .

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Q 19fill in the blanks.1 Mark

If $x$ men can do a work in $y$ days, then $y$ men can do a work in __________ days.

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Q 20fill in the blanks.1 Mark

When $x$ and y are in direct proportion then
$\frac{\dots}{\dots}=\frac{\dots}{\dots}=\frac{\dots}{\dots}=$ __________ and so on

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Q 21MCQ1 Mark

A garrison of 750 men has provisions for 20 weeks. If at the end of 4 weeks they are reinforced by 450 men, how long will the remaining provisions last?

✓
10 weeks
B
11 weeks
C
15 weeks
D
16 weeks

Answer: A.

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Q 22MCQ1 Mark

A rope makes 140 rounds of a cylinder with base radius 14 cm . How many times can it go round a cylinder with base radius 20 cm ?

A
17
✓
98
C
120
D
200

Answer: B.

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Q 23MCQ1 Mark

10 pipes of the same type fill a tank in 24 minutes. If two pipes go out of order, how long will the remaining pipes take to fill the tank?

A
$19 \frac{1}{5} min$
✓
30 min
C
40 min
D
45 min

Answer: B.

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Q 24MCQ1 Mark

If 20 persons can do a piece of work in 7 days, then the number of persons required to complete the work in 28 days, is

✓
5
B
9
C
80
D
none of these

Answer: A.

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Q 25MCQ1 Mark

If 15 men can reap a field in 35 days, in how many days will 21 men reap the field?

A
9 days
✓
25 days
C
$29 \frac{1}{6}$ days
D
49 days

Answer: B.

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Direct and Inverse Variation question types

Direct and Inverse Variation questions

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Direct and Inverse Variation MATHS - Direct and Inverse Variation

Direct and Inverse Variation question types

Direct and Inverse Variation questions

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