# Number System : Practice Test -1

JagranJosh Experts came up with all new Conceptual Practice Test on Quantitative Aptitude-Number System which contains topics such as LCM and HCF, Simplification, Approximation, etc. This practice set contains 15 questions with explanations. Quantitative aptitude- Number System Online Practice Test is useful for all important exams like IBPS, SBI PO-Clerk, IBPS RRB, SBI, Insurance, SSC, CAT, Railways, CDS, CTET, Campus Placements, etc.

• ## Question 1

A sandwich is made from 2 bread slices. Three loafs of bread having weight 637gm, 581gm and 553gm respectively, are sliced evenly such that each slice has maximum possible weight. How many sandwiches can be made using the available bread slices?
• ## Question 2

A 3-digit number is made using any three consecutive digits from 1-9 such that it is divisible by 9. The digit at unit place of the number can be?
• ## Question 3

There are four numbers P, Q, R and S. P is 1/3rd is of the total of Q, R and S. Q is 1/4th of the total of the P, R and S. R is 1/5th of the total of P, Q and S. If the total of the four numbers is 13920, then find the value of S.
• ## Question 4

In an Olympiad, candidates from five different states have assembled in Delhi. The candidates that have come to represent the five different states are 84, 120, 420, 180 and 168. What is the minimum number of rooms that would be required to accommodate, so that each room has the same number of occupants and occupants are all from the same states?
• ## Question 5

Find out the least number which should be multiplied to 11760 to make it a perfect square
• ## Question 6

If we add a number to three – fifth of twenty percent of 200, we get 362. Then find out the number?
• ## Question 7

A man has 1276 candles and can make one candle from 11 stubs after burning. How many candles can he make at the maximum?
• ## Question 8

If the digit in the unit’s place of a two–digit number is halved and the digit in the ten’s place is doubled, the number thus obtained is equal to the number obtained by interchanging the digits. Which of the following is definitely true?
• ## Question 9

One fourth of girls and one-third of the boys of a hostel opt for vegetarian food. What fraction of the student body is vegetarian if the total number of girls in the college is 200 and is one-fourth of the total strength?
• ## Question 10

Direction: What approximate value will come in place of the question mark (?) in the following equation?
• ## Question 11

Direction: What approximate value will come in place of the question mark (?) in the following equation?
$\frac{{21}^{5.36}}{{21}^{3.47}}={21}^{\left(?\right)}$
• ## Question 12

Direction: What approximate value will come in place of the question mark (?) in the following equation?
${8}^{1.3}×{4}^{0.6}×{16}^{0.2}={2}^{?}$
• ## Question 13

Direction: What approximate value will come in place of the question mark (?) in the following equation?
$1\frac{4}{7}+7\frac{1}{3}+3\frac{3}{5}=?$
• ## Question 14

Direction: What approximate value will come in place of the question mark (?) in the following equation?
• ## Question 15

Five bells commence tolling together and toll at intervals of 3,6,9,12 and 15 seconds respectively. In 45 minutes, how many times do they toll together?