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Question (11)

QN0019782

If 18 oranges cost ₹90, the cost of 24 oranges is:

(A) ₹110
(B) ₹120
(C) ₹130
(D) ₹140

Correct Answer: B

Explanation:

Cost per orange = ₹5, so 24×5=120.

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Question (12)

QN0019783

The value of x if 4 : 7 :: 20 : x is:

(A) 28
(B) 30
(C) 35
(D) 40

Correct Answer: C

Explanation:

x = (20×7)/4 = 35.

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Question (13)

QN0019784

A map scale is 1 : 1,00,000. A distance of 3 cm on the map represents:

(A) 1 km
(B) 2 km
(C) 3 km
(D) 4 km

Correct Answer: C

Explanation:

1 cm = 1 km, therefore 3 cm = 3 km.

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Question (14)

QN0019785

If 6 workers can make 48 chairs in a week, how many chairs can 9 workers make in the same time?

(A) 60
(B) 72
(C) 84
(D) 96

Correct Answer: B

Explanation:

48×9/6 = 72.

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Question (15)

QN0019786

Which of the following is a direct proportion?

(A) Speed and time for a fixed distance
(B) Workers and days for fixed work
(C) Number of items and total cost at fixed rate
(D) Pumps and time to fill a tank

Correct Answer: C

Explanation:

More items lead to proportionally higher cost.

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Question (16)

QN0019787

If 12 metres of cloth cost ₹720, then 18 metres cost:

(A) ₹980
(B) ₹1020
(C) ₹1080
(D) ₹1200

Correct Answer: C

Explanation:

Cost per metre = ₹60, so 18×60=1080.

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Question (17)

QN0019788

The fourth proportional to 2, 8 and 5 is:

(A) 10
(B) 15
(C) 20
(D) 25

Correct Answer: C

Explanation:

x=(8×5)/2=20.

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Question (18)

QN0019789

A train travels 150 km using 10 litres of diesel. How much diesel is needed for 225 km?

(A) 12 litres
(B) 15 litres
(C) 18 litres
(D) 20 litres

Correct Answer: B

Explanation:

10×225/150 = 15 litres.

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Question (19)

QN0019790

If 9 kg sugar costs ₹495, then 15 kg sugar costs:

(A) ₹725
(B) ₹775
(C) ₹825
(D) ₹875

Correct Answer: C

Explanation:

Cost per kg = ₹55, so 15×55=825.

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Question (20)

QN0019791

Which ratio is not proportional to 4 : 9?

(A) 8 : 18
(B) 12 : 27
(C) 16 : 36
(D) 20 : 42

Correct Answer: D

Explanation:

20:42 simplifies to 10:21, not 4:9.

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Question (11)

If 18 oranges cost ₹90, the cost of 24 oranges is:

Explanation:

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Question (12)

The value of x if 4 : 7 :: 20 : x is:

Explanation:

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Question (13)

A map scale is 1 : 1,00,000. A distance of 3 cm on the map represents:

Explanation:

Link:

Question (14)

If 6 workers can make 48 chairs in a week, how many chairs can 9 workers make in the same time?

Explanation:

Link:

Question (15)

Which of the following is a direct proportion?

Explanation:

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Question (16)

If 12 metres of cloth cost ₹720, then 18 metres cost:

Explanation:

Link:

Question (17)

The fourth proportional to 2, 8 and 5 is:

Explanation:

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Question (18)

A train travels 150 km using 10 litres of diesel. How much diesel is needed for 225 km?

Explanation:

Link:

Question (19)

If 9 kg sugar costs ₹495, then 15 kg sugar costs:

Explanation:

Link:

Question (20)

Which ratio is not proportional to 4 : 9?

Explanation:

Link:

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