Research Aptitude Test

Result

Research Aptitude Test - 3

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
2 / -0.5

Directions: For each of the below questions, identify which option(s) logically follow based on the given statement.
Whenever my mother scolds me, I either hide behind my father or complain to my grandma.

A
If I did not complain to my grandma and I did not hide behind my father, then my mother must not have scolded me.

B
If I complain to my grandma or I hide behind my father, then my mother must have scolded me.

C
If my mother does not scold me, I will neither hide behind my father nor complain to my Grandma.

D
None of these

Solution

If whenever my mother scolds me, I either hide behind my father or complain to my grandma. Then, if I did not complain to my grandma &did not hide behind my father, my mother must not have scolded me. Correct option is (a)
Question 2
2 / -0.5

Directions to Solve

In each of the following questions find out the alternative which will replace the question mark.

Question -

REASON : SFBTPO :: THINK : ?

A
SGHMJ

B
UIJOL

C
UHNKI

D
UJKPM

Solution

Hence, the correct ans is UIJOL which is option b.
Question 3
2 / -0.5

At what angle the hands of a clock are inclined at 15 minutes past 5?

A

B
64⁰

C

D

Solution

15 past 5 means quarter past 5 = (5:15)
⇒ (11*15 - 60*5)/2 = 67.5
Question 4
2 / -0.5

Priya can do 1/2 of the work in 8 days, while Preeti can do 1/3 of the work in 6 days. How long will it take for both of them to finish the work?

A
88/17 day

B
144/17 days

C
72/17 days

D
8 days

Solution

Priya ’s days work = (½)/8 = 1/16

Preeti ’s days work

⇒(⅓)/6 = 1/18 days

Together they can finish in.
Question 5
2 / -0.5

find the difference between the simple and the compound interest at 5% per annum for 2 years on a principal of Rs. 2000.

A
5

B
105

C
4.5

D
None of these
Solution
To find the difference between simple interest and compound interest at 5% per annum for 2 years on a principal of Rs. 2000, follow these steps:

Simple Interest (SI) :

Formula: SI = (Principal ×Rate ×Time) / 100

Calculation: SI = (2000 ×5 ×2) / 100 = Rs. 200

Compound Interest (CI) :

Formula: CI = Principal ×(1 + Rate/100)^Time - Principal

Calculation: CI = 2000 ×(1 + 5/100)² - 2000

Simplified: CI = 2000 ×1.1025 - 2000 = Rs. 205

Difference between CI and SI:

Difference = CI - SI = 205 - 200 = Rs. 5
Question 6
2 / -0.5

What is the simple interest for five years on a sum of Rs. 700 if the rate of interest for the first 3 years is 8% per annum and for another 2 years is 7% per annum?

A
400

B
392

C
352

D
266

Solution
Question 7
2 / -0.5

Two trains 200 m and 150 m long are running on parallel rails at the rate of 40 kmph and 45 kmph, respectively. In how much time will they cross each other, if they are running in the same direction?

A
72 sec

B
132 sec

C
192 sec

D
252 sec

Solution

Relative speed = (45-40)kmph = 5 kmph.

= (5 x (5/18))m/sec = (25/18) m/sec

Total distance covered = Sum of the length of trains = 350 m

∴ Time taken = (350 x (18/25))sec = 252 sec.
Question 8
2 / -0.5

It is postulated that huge deposits of NaCI (rock salt) and CaCO₃(chalk and marble) are sites of erstwhile oceans, where the salts had been concentrated through weathering by rain and wind and leaching by rivers. Select the correct explanatory statement in this context.

A
Both NaCI and CaCO₃ are highly soluble in water.

B
NaCI is soluble in water, but CaCO₃ is not. Hence, the concentration of CaCO₃ in the oceans through weathering is an untenable hypothesis.

C
The solubility of CaCO₃ in water is pH dependent and is enhanced by acidic atmospheric gases. Hence, CaCO₃ may be leached into water during weathering.

D
NaCI and CaCO₃ are igneous rocks and have crystallized as such during the slow cooling process when the earth was born. Hence, the ocean postulates are baseless

Solution

The solubility of CaCO₃ in water is pH dependent and is enhanced by acidic atmospheric gases. Hence, CaCO₃ may be leached into water during weathering.
Question 9
2 / -0.5

If log 2 = 0.30103 and log 3 = 0.4771, find the number of digits in (648) ⁵.

A
23

B
15

C
13

D
14

Solution

You must know and Remember that No. of Significant Digit before decimal = [ (Characteristic)_{base 10} + 1]. To find (Characteristic)_base10 ,

Log (648)⁵ = 5(log 648) = 5(log 2³ .3⁴ ) = 5(3.log2 + 4 log 3) = 5(3(0.301) + 4(0.4771))

(Characteristic)_base10 ,= 14

So, Answer is 14 + 1 = 15
Question 10
2 / -0.5

A man can cover a distance in 1hr 24min by covering 2/3 of the distance at 4 km/h and the rest at 5km/h. The total distance is

A
2 km

B
5 km

C
6 km

D
10 km

Solution

You must Know Km/hr (5/18) = m/sec

Say Total Distance be d

(2d/3)/4 + (d/3)/5 = 1+24/60

So, get d = 6 Km