**Directions(1-5): **Find the wrong term of the following series.

- 4, 6, 12, 30, 60, 315, 1260
126064315Option B

*1.5

*2

*2.5

*3

*3.5

*4

60 == 90 - 200, 196, 192, 180, 160, 130, 88
20016019688130Option C

Double difference

196 == 198 - 9.2, 10.6, 7.6, 12.4, 6, 14, 4.4
9.210.67.6614Option B

+1.6,-3.2,+4.8,-6.4,+8,-9.6

10.6 == 10.8 - 1, 730, 975, 1054, 1081, 1090, 1093
730975108110901093Option B

+729,+243,+81,+27,+9,+3 - 3, 4, 9, 28, 113, 565, 3397
439565113Option D

*1+1

*2+1

*3+1

*4+1

*5+1

*6+1

565 == 566 - A can complete a work in 36 days. B is 33.33% more efficient than A. In how many days both complete the work if they work on alternate days starting with A?
2023313539Option C

B will complete the work alone in = 3/4 × 36 = 27 days

A 36 —–3

—–108

B 27—– 4

Let total units of work = 108

No. of units done by A in 1 day = 3

No. of units done by B in 1 day = 4

Total work done in 2 days = 7 units

Work done in 30 days = 7 × 15 = 105 units

Remaining work will be done by A in 108 105 3 = 1 day.

Total days taken = 31 days - Faizal adds 12% of his salary in PPF. 3/8th of the remaining amount is spent on clothes and the difference between PPF and clothes expenses is Rs 10500. Remaining amount is spent on house rent and other expenses. If house rent expenses is Rs 1500 less than other expenses, then what is the house rent expenses?
1500014000130001600017000Option C

12% of the salary is added as PPF.

Remaining Part = 100 – 12 = 88%

Amount spent on clothes = of 88% = 33%

Difference between PPF and cloth expanses = 33 – 12 = 21% of salary = 10500

Total salary = 50000 Other expanses = House Rent expanses + 1500

House Rent expanses + Other expanses

= (100 – 33 – 12)% of salary = 55% of salary = 27500

House Rent expanses + House Rent expanses + 1500 = 27500

2 × House Rent expanses = 27500 – 1500 = 26000

House Rent expanses = 13000 - In one litre of mixture of alcohol and water, 30% is water. The amount of alcohol that must be added to the mixture, so that the part of water in the mixture becomes 15%, is:
100098512001250900Option A

In 1000 ml of mixture, Alcohol = 700 ml

Water = 300 ml

Let x ml of alcohol is mixed.

[300/(1000+x)]*100 = 15

=>x = 1000 ml - The surface area of a spherical part of a hemispherical bowl with a flat circular detachable cover, excluding the cover, is 616 sq cm. The area of the cover is 38.5 sq cm. What is the volume of the bowl?
21001952203321211990Option C

2*pi*r*r= 616

r*r = 98

Volume = 2/3*pi*r*r*r = 2033 cm^3 - Sum of present ages of A and B is 41. Age of A 2 year hence is equal to age of C, 1 year ago. Age of A, 4 year hence is equal to age of B 1year ago and ratio of present age of A and D is 3 : 4. Find the difference of age of C and D.
56378Option C

A + B = 41 …(i)

C -1 = A + 2 C = A + 3

And A + 4 = B – 1

⇒ B = A + 5 …(ii)

From (i) + (ii)

A = 18 years

B = 18 + 5 = 23 years

C = 18 + 3 = 21 years

D = 18 *4/3 = 24 years

Diff. = 3 years

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