Find the sum to n terms of the series 10+84+734+......

**A. **

**B. **

**C. **

**D. **

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

No Explaination.

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The table below has question-wise data on the performance of students in an examination.
The marks for each question are also listed. There is no negative or partial marking in the
examination.

Total question

44×2=88

44×3=132

132 308

Total marks obtained= (21×2) + (15×3) + (23×2) =133

Total Number of students=44

Average = 133/44 = 3.02

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Hari (H), Gita (G), Irfan (I) and Saira (S) are siblings (i.e. brothers and sisters).
All were born on 1st January. The age difference between any two successive
siblings (that is born one after another) is less than 3 years. Given the following
facts: **A. ** HSIG

**B. ** SGHI

**C. ** IGSH

**D. ** IHSG

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

I : Hair’s age + Gita’s age > Irfan’s age + Saira’s age

II : The age difference between Gita and Saira is 1 year. However, Gita is not
the oldest and Saira is not the youngest

III: There are not twins

No Explaination.

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A tourist covers half of his journey by train at 60 km/h, half of the remainder by
bus at 30 km/h and the rest by cycle at 10 km/h. The average of the tourist in
km/h during his entire journey is

**A. ** 36

**B. ** 30

**C. ** 24

**D. ** 18

**Answer : ****Option C**

**Explaination / Solution: **

Let the total distance covered be ‘D’

Let the total distance covered be ‘D’

Now, average speed = D/Total time taken

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Read the statements: All women are entrepreneurs. Some women are doctors. Which of the following conclusions can be logically inferred from the above statements ?

**A. ** All women are doctors

**B. ** All doctors are entrepreneurs

**C. ** All entrepreneurs are women

**D. ** Some entrepreneurs are doctors

**Answer : ****Option D**

**Explaination / Solution: **

No Explaination.

No Explaination.

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In a triangle PQR,PS is the angle bisector of ∟QPR and ∟QPS = 60^{0} .
What is the length of PS?

**A. ** (q+r)/qr

**B. ** qr/(q+r)

**C. **

**D. ** (q+r)^{2}/qr

**Answer : ****Option B**

**Explaination / Solution: **

No Explaination.

No Explaination.

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A company uses 2555 units of an item annually. Delivery lead time is 8 days. The recorder point
(in number of units) to achieve optimum inventory is

**A. ** 7

**B. ** 8

**C. ** 56

**D. ** 60

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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A superspeedway in New Delhi has among the highest super-elevation rates of any track on the
Indian Grand Prix circuit. The track requires drivers to negotiate turns with a radius of 335 m and
33° banking. Given this information, the coefficient of side friction required in order to allow a
vehicle to travel at 320 km/h along the curve is

**A. ** 1.761

**B. ** 0.176

**C. ** 0.685

**D. ** 2.530

**Answer : ****Option C**

**Explaination / Solution: **

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A phenomenon is modeled using n dimensional variables with k primary
dimensions. The number of non-dimensional variables is

**A. ** k

**B. ** n

**C. ** n-k

**D. ** n+k

**Answer : ****Option C**

**Explaination / Solution: **

No Explaination.

No Explaination.

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T here are eight bags of rice looking alike, seven of which have equal weight and one is slightly heavier. The weighing balance is of unlimited capacity. Using this balance, the minimum number of weighings required to identify the heavier bag is

**A. ** 2

**B. ** 3

**C. ** 4

**D. ** 8

**Answer : ****Option A**

**Explaination / Solution: **

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