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Q:

In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ? 

A) 15 kg B) 25 kg
C) 35 kg D) 45 kg
 
Answer & Explanation Answer: D) 45 kg

Explanation:

Let the ratio of initial quantity of oils be 'x' => 4x, 5x & 8x.
Let k be the quantity of third variety of oil in the final mixture.
Let the ratio of initial quantity of oils be 'y'
From given details,
4x + 5 = 5y ..... (1)
5x + 10 = 7y .....(2)
8x + k = 9y ......(3)

By solving (1) & (2), we get
x = 5 & y = 5

From (3) => k = 5

Therefore, quantity of third variety of oil was 9y = 9(5) = 45kg.

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Q:

The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ?

A) 384 B) 96
C) 192 D) 206
 
Answer & Explanation Answer: C) 192

Explanation:

Let the third subject marks be 'x'
=> Second subject marks = 2x
=> Third subject marks = 4x
Given avg = 224
x + 2x + 4x = 224 x 3
=> 7x = 224 x 3
=> x = 96
Hence, Second subject marks = 2x = 2 x 96 = 192.

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Q:

Israel’s Rafael Defense Systems ltd has formed a joint venture with ________ to produce anti-tank guided missiles for the Indian armed forces.

A) Goa Shipyard B) Hindustan Aeronautics Limited
C) Kalyani Group D) Hindustan Aeronautics Limited
 
Answer & Explanation Answer: C) Kalyani Group

Explanation:
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Q:

Which of the following software firm will acquire Brilliant Basics, Product Design and Customer Experience (CX) company ?

A) Infosys B) Nautics Technology
C) Google D) Source code software co.
 
Answer & Explanation Answer: A) Infosys

Explanation:
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Q:

Which country has launched its first environmental research satellite 'Venus' ?

A) Russia B) India
C) China D) Israel
 
Answer & Explanation Answer: D) Israel

Explanation:
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Filed Under: General Awareness
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Q:

Customer Perceptions and Business Outcomes help to define what ?

A) Key Performance Indicators (KPI's) B) Service Value
C) Total Cost of Ownership (TCO) D) Governance
 
Answer & Explanation Answer: B) Service Value

Explanation:
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Q:

Which year did India hosted and participated in Asian games for the first time ?

A) 1930 B) 1933
C) 1948 D) 1951
 
Answer & Explanation Answer: D) 1951

Explanation:
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Filed Under: Sports
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Q:

The length of two superfast trains are 140 mts and 160 mts respectively. If they run at the speed of 60 km/hr and 80 km/hr respectively in opposite direction, find the time in which they will cross each other ? 

A) 7.71 sec B) 10.48 sec
C) 9.36 sec D) 8.45 sec
 
Answer & Explanation Answer: A) 7.71 sec

Explanation:

Given L1 = 140 m

L2 = 160 m

S1 = 60 km/hr

S2 = 80 km/hr

From the question we get,

S1 + S2 = (L1 + L2) / T

=> (60 + 80) 5/18 m/s = 140 + 160/T

=> T = 54/7 = 7.71 sec

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