Important for :

1

B

According to the question, (B – A) = (C – B)

2B = A + C

Let B = x

A = x – d years and C = x + d years then the above condition is satisfied

Now, x – d + x + x + d = 30 × 3

By solving, x = 30 years

And D = B + 40 = 30 + 40 = 70 years

The required sum = 30 + 70 = 100 years

Hence, option B is correct.

2

3

E

Let the time taken to go uphill = x + 2 hour then time to come downhill = x hour

Since, the distance is same

Let the speed to come downhill = 5a km per hour then the speed to go uphill = 4a km per hour

We know that, distance = speed × time

5a × x = 4a(x + 2)

x = 8 hours

Therefore, the total distance taken by him in the entire journey = 8 + 10 = 18 hours

Hence, option E is correct.

4

A

From 10 kg of sunflower, 2.5 kg of oil can be extractedTherefore, from 45 kg of sunflower seeds

The quantity of oil = | 2.5 × 45 | = 11.25 litres |

10 |

In the mixture, let the quantity of sunflower oil = 2x litres = 11.25 litres

x = 5.625 litres

Therefore, the quantity of coconut oil required = 3x = 3 × 5.625 = 16.875 litres

Hence, option A is correct.

5

C

Let the efficiency of one man = 4 units per day

Then on the first day, the number of units done by 10 men = 10 × 4 = 40 units

On 2^{nd} day, 9 × 4 = 36 units

On 3^{rd} day, 8 × 4 = 32 units

On 4^{th} day, 7 × 4 = 28 units

On 5^{th} day, 6 × 4 = 24 units

On 6^{th} day, 5 × 4 = 20 units

On 7^{th} day, 4 × 4 = 16 units

On 8^{th} day, 3 × 4 = 12 units

The total units of work done by them in 8 days = (40 + 36 + 32 + 28 + 24 + 20 + 16 + 12) = 208 units

The efficiency of one woman = 75% of 4 = 3 units per day

Triple of the work = 208 × 3 units

The double of the time = 8 × 2 = 16 days

Let x women work together then, x × 3 × 16 = 208 × 3

x = 13 = The number of women

Hence, option C is correct.

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Here are some important examples regarding

130 years

100 years

60 years

75 years

None of these

According to the question, (B – A) = (C – B)

2B = A + C

Let B = x

A = x – d years and C = x + d years then the above condition is satisfied

Now, x – d + x + x + d = 30 × 3

By solving, x = 30 years

And D = B + 40 = 30 + 40 = 70 years

The required sum = 30 + 70 = 100 years

Hence, option B is correct.

190

95

57

76

None of these

According to the question,

150% of (17x – 5) = (19x + 25)

(17x – 5) × 3 = 2 × (19x + 25)

51x – 15 = 38x + 50

13x = 65

x = 5

The required answer = 19 × 5 = 95

Hence, option B is correct.

16 hours

12 hours

20 hours

14 hours

None of these

Let the time taken to go uphill = x + 2 hour then time to come downhill = x hour

Since, the distance is same

Let the speed to come downhill = 5a km per hour then the speed to go uphill = 4a km per hour

We know that, distance = speed × time

5a × x = 4a(x + 2)

x = 8 hours

Therefore, the total distance taken by him in the entire journey = 8 + 10 = 18 hours

All the above questions through, you must make sure about arithmetic miscellaneous questions which have been seen in the last few years. We hope this above

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Team Smartkeeda