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Q:

In the question given below, two equations are provided. Solve the equations and establish the relationship between x and y

I. 2x2-13x-189=0 II. 2y2-3y-189=0

A) x>y B)  x≥y
C)  x<y D) x≤y
 
Answer & Explanation Answer:

Explanation:

I. 2x2 - 13x - 189 = 0 2x2 - 27x + 14x - 189 = 0 x(2x - 27) + 7(2x - 27) = 0 x = -7, 27/2

II. 2y2 - 3y - 189 = 0 2y2 - 21y + 18y - 189 = 0 y(2y - 21) + 9(2y - 21) = 0 y = -9, 21/2

When x, as well as y, have both positive and negative values then no relationship can be established between them because if we consider x to be positive then the negative value of y will be lesser than x. If we consider x to be negative then positive value of y will be greater than x.

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Filed Under: Simplification

0 1426
Q:

Two number P & Q are 20 % and 28 % less then a number X. What is the percentage the number Q is smaller then the number P?

A) 10% B) 23%
C) 12% D) 13%
 
Answer & Explanation Answer: A) 10%

Explanation:

Let the number X is 100

Then, PÃ 80 QÃ 72

So, Percentage decrease from P to Q is à 8/80=0.1-100=10%

1 is the right choice.

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Filed Under: Percentage

1 2780
Q:

Nikhil is 8 yr younger than his brother Rohan . How old will Rohan be when he is twice as old as Nikhil ?

A) 4 yr B) 6 yr
C) 8 yr D) 16 yr
 
Answer & Explanation Answer: D) 16 yr

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability

0 904
Q:

What should come in place of question mark (?) in the following question?

600 + 300 ÷ 15 = ? × 31

A) 18 B) 25
C) 40 D) 20
 
Answer & Explanation Answer: D) 20

Explanation:

As per the BODMAS rule, Addition and subtraction can be treated on same priority (from left to right) when they are in consecutive order. 600 + (300/15) = ? × 31 600 + 20 = ? × 31 ? = 620/31 = 20

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Filed Under: Number Series

4 83337
Q:

The ages of Sunil and Anil are in the ratio 8:7, after 6 years, the ratio of their ages will be 19 : 17. What is the difference in their present ages?

A) 10 years B) 6 years
C) 8 years D) 4 years
 
Answer & Explanation Answer: D) 4 years

Explanation:

suppose the ages of Sunil and Anil are 8x yr and 7x yr, respectively.
After 6 yr, = 136x + 102 = 133x + 114
136x – 133x = 114 – 102
3x = 12 X = 12/3 = 4
Age of Sunil = 8x = 8 × 4 = 32 yr
Present age Anil = 7x = 7 × 4 = 28 yr
Required difference = (32 – 28) = 4 yr

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Filed Under: Problems on Ages
Exam Prep: Bank Exams

3 3388
Q:

Anand is son of Prema. Rajeev is brother of Prema. Neha is daughter of Rashmi . Neha is sister of Rajeev. How is Anand related to Rashmi ?

A) Son B) Grand Son
C) Grand Father D) Grand Daughter
 
Answer & Explanation Answer: B) Grand Son

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability

0 1178
Q:

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

5 , 9 , 6 , 11, 7 , ?

A) 13 B) 15
C) 17 D) 19
 
Answer & Explanation Answer: A) 13

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability

0 711
Q:

A series is given, with one term missing. Choose the correct alternative from the given ones that will complete the series.

ajs , gpy , ? , sbk , yhq

A) dmv B) mve
C) oua D) qzi
 
Answer & Explanation Answer: B) mve

Explanation:
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Filed Under: Verbal Reasoning - Mental Ability

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