WeCP Number System, Decimal, and Power Quiz 1

Question 1

Time: 00:00:00
How many whole numbers are there between 124 and 298 which are exactly divisible by 11?

14

14

16

16

18

18

17

17

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 2

Time: 00:00:00
In a class of 30 students, the professor H.C. Verma gave the students an interesting question.

For the given equation, ax^{2}+bx+c = 0 , if P and Q are its roots. Then which equation will have roots (PQ + P + Q) and (PQ – P – Q)?

a^2x^2 + 2acx + c^2 + b^2 = 0

a^2x^2 + 2acx + c^2 + b^2 = 0

a^2x^2 - 2acx + c^2 - b^2 = 0

a^2x^2 - 2acx + c^2 - b^2 = 0

a^2x^2 - 2acx + c^2 + b^2 = 0

a^2x^2 - 2acx + c^2 + b^2 = 0

a^2x^2 + 2acx + c^2 - b^2 = 0

a^2x^2 + 2acx + c^2 - b^2 = 0

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 3

Time: 00:00:00
m and n are two whole numbers and p is their LCM. If m= 13, p= 39 and the HCF of these two numbers is 1 then find the value of n ?

13

13

3

3

507

507

23

23

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 4

Time: 00:00:00
In maths class, the professor Dr. Kundu gave the students a simple question. What will be the largest number which divides 159, 124, and 208 leaving remainder 6, 5 and 4 respectively?

7

7

11

11

13

13

17

17

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 5

Time: 00:00:00
A group of students were preparing for the CAT exam. While solving the questions, they chrome across the following question. Find the least multiple of 23, which when divided by 18, 21 and 24 leaves the remainder 7, 10 and 13 respectively.

3059

3059

2967

2967

3013

3013

2958

2958

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 6

Time: 00:00:00
Find\ the\ n^{th}\ term\ of\ the\ following\ sequence:

3 + 33 + 333 + ……….. T_n

3(10^n-1)

3(10^n-1)

\frac{3}{9}(10^n-1)

\frac{3}{9}(10^n-1)

\left ( \frac{3}{9} \right )^n(10^n-1)

\left ( \frac{3}{9} \right )^n(10^n-1)

3^n(10^n-1)

3^n(10^n-1)

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 7

Time: 00:00:00
Professor Bohra from IIT Mandi gave his student a simple question.

If\ 1^3 + 2^3 + 3^3 +.... + 10^3 = 3025\ and\ 2^3+ 4^3+ 6^3.... + 20^3 = m

Then find the value of 2m.

24200

24200

48400

48400

72600

72600

12100

12100

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 8

Time: 00:00:00
When a number is divided by 4, 7 and 9, it leaves the remainder as 5. Consider all such possible numbers in between 80 and 800. What is the average of the numbers ?

509

509

504

504

756

756

514

514

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 9

Time: 00:00:00
In a positive fraction, its numerator is 5 less than its denominator. If the denominator is decreased by 6 and the numerator is increased by 3, the numerator becomes three times the denominator. What is the value of fraction ?

\frac{5}{8}

\frac{5}{8}

\frac{3}{8}

\frac{3}{8}

\frac{3}{7}

\frac{3}{7}

\frac{4}{7}

\frac{4}{7}

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

Question 10

Time: 00:00:00
If\ A = 2^{30},\ B = 2^{29} + 2^{28} + 2^{27} + … + 2^0\ and\ C = 3^{14} + 3^{13} + 3^{12} +.... +3^0,\ then\ which\ of\ the\ following\ options\ is\ TRUE\ ?

C>B>A

C>B>A

B>A>C

B>A>C

A>C>B

A>C>B

A>B>C

A>B>C

Once you attempt the question then PrepInsta explanation will be displayed.

Please login to submit your explanation

["0","40","60","80","100"]
["Need more practice!","Keep trying!","Not bad!","Good work!","Perfect!"]

Personalized Analytics only Availble for Logged in users

Analytics below shows your performance in various Mocks on PrepInsta

Your average Analytics for this Quiz

Rank

-

Percentile

0%

Get over 200+ Courses under One Subscription

mute

Don’t settle Learn from the Best with PrepInsta Prime Subscription

Learn from Top 1%

One Subscription, For Everything

The new cool way of learning and upskilling -

Limitless Learning

One Subscription access everything

Job Assistance

Get Access to PrepInsta Prime

Top Faculty

from FAANG/IITs/TOP MNC's

Get over 200+ course One Subscription

Courses like AI/ML, Cloud Computing, Ethical Hacking, C, C++, Java, Python, DSA (All Languages), Competitive Coding (All Languages), TCS, Infosys, Wipro, Amazon, DBMS, SQL and others.

Comments