Free Practice Questions for Competitive Exams, Interviews, Certifications

Q:

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

$I . 2 x^{2} - 13 x - 189 = 0 II . 2 y^{2} - 3 y - 189 = 0$

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 2236

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 Ã 8/80=0.1-100=10%

1 is the right choice.

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Filed Under: Percentage

1 3275

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 1334

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 110500

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 4033

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 1688

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 1058

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

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