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MCQOPTIONS
This section includes 2251 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Circuits knowledge and support exam preparation. Choose a topic below to get started.
| 1351. |
Which of the following number is not divided by 18 ? |
| A. | 4036 |
| B. | 0436 |
| C. | 4056 |
| D. | 5043 |
| Answer» E. | |
| 1352. |
If $$\frac{4}{5}$$ of an estate be worth Rs. 16800, then the value of $$\frac{3}{7}$$ of it is - |
| A. | s. 90000 |
| B. | s. 9000 |
| C. | s. 72000 |
| D. | s. 21000 |
| Answer» C. s. 72000 | |
| 1353. |
The sum of all natural numbers from 75 to 97 is - |
| A. | 598 |
| B. | 798 |
| C. | 958 |
| D. | 978 |
| Answer» E. | |
| 1354. |
A number of boys raised Rs. 400 for a famine relief fund,each boy giving as many 25 paise coins as there were boys. The number of boys was - |
| A. | 0 |
| B. | 6 |
| C. | 0 |
| D. | 00 |
| Answer» B. 6 | |
| 1355. |
Given that, three numbers are such that the second number is twice the first and thrice the third. Also the average of the three numbers is 44. then the difference of the first and the third is : |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 1356. |
The fractions $$\frac{1}{3}{\text{,}}\frac{4}{7}$$and $$\frac{2}{5}$$written in ascending order given by - |
| A. | $\frac{4}{7} < \frac{1}{3} < \frac{2}{5}$$ |
| B. | $\frac{2}{5} < \frac{4}{7} < \frac{1}{3}$$ |
| C. | $\frac{1}{3} < \frac{2}{5} < \frac{4}{7}$$ |
| D. | $\frac{4}{7} < \frac{1}{3} < \frac{2}{5}$$ |
| Answer» D. $\frac{4}{7} < \frac{1}{3} < \frac{2}{5}$$ | |
| 1357. |
Which one of the following numbers is not a square of any natural number ? |
| A. | 7956 |
| B. | 8225 |
| C. | 3592 |
| D. | 3361 |
| Answer» D. 3361 | |
| 1358. |
The largest among the numbers ? |
| A. | ${\left( {0.1} \right)^2}$$ |
| B. | $\sqrt {0.0121\,} $$ |
| C. | 0.12 |
| D. | $\sqrt {0.0004} $$ |
| Answer» D. $\sqrt {0.0004} $$ | |
| 1359. |
The number 1, 3, 5, 7. . . . . 99 and 128 are multiplied together. The number of zeros at the end of the product must be - |
| A. | 9 |
| B. | 2 |
| C. | |
| Answer» D. | |
| 1360. |
The sum of all three digit numbers, each of which on divide by 5 leaves remainder 3, is - |
| A. | 80 |
| B. | 550 |
| C. | 995 |
| D. | 9090 |
| Answer» E. | |
| 1361. |
If (64)2 - (36)2 = 20 × x, then x = ? |
| A. | 0 |
| B. | 20 |
| C. | 80 |
| D. | 40 |
| E. | one of these |
| Answer» E. one of these | |
| 1362. |
72519 × 9999 = ? |
| A. | 25117481 |
| B. | 74217481 |
| C. | 85126481 |
| D. | 96217481 |
| E. | one of these |
| Answer» B. 74217481 | |
| 1363. |
(12)3 × 64 × 432-1 = ? |
| A. | 184 |
| B. | 060 |
| C. | 148 |
| D. | 084 |
| E. | one of these |
| Answer» B. 060 | |
| 1364. |
397 × 397 + 104 × 104 + 2 × 397 × 104 = ? |
| A. | 50001 |
| B. | 51001 |
| C. | 60101 |
| D. | 61001 |
| E. | one of these |
| Answer» C. 60101 | |
| 1365. |
The sum of three consecutive odd natural numbers each divisible by 3 is 63. What is the largest among them ? |
| A. | 1 |
| B. | 4 |
| C. | 7 |
| D. | 6 |
| Answer» D. 6 | |
| 1366. |
The greatest value among the fractions :$$\frac{2}{7},$$ $$\frac{1}{3},$$ $$\frac{5}{6},$$ $$\frac{3}{4}$$ |
| A. | $\frac{3}{4}$$ |
| B. | $\frac{5}{6}$$ |
| C. | $\frac{1}{3}$$ |
| D. | $\frac{2}{7}$$ |
| Answer» C. $\frac{1}{3}$$ | |
| 1367. |
How many number between 1000 and 5000 are exactly divisible by 225 ? |
| A. | 6 |
| B. | 8 |
| C. | 9 |
| D. | 2 |
| Answer» C. 9 | |
| 1368. |
On multiplying a number by 7 all the digit in the product appear as 3's , the smallest such numbers is - |
| A. | 7649 |
| B. | 7719 |
| C. | 7619 |
| D. | 8619 |
| Answer» D. 8619 | |
| 1369. |
Sum of three consecutive even integers is 54. Find the least integer among them. |
| A. | 8 |
| B. | 5 |
| C. | 4 |
| D. | 6 |
| Answer» E. | |
| 1370. |
The value of : $$\frac{{3.157 \times 4126 \times 3.198}}{{63.972 \times 2835.121}}$$ |
| A. | 0.002 |
| B. | 0.02 |
| C. | 0.2 |
| Answer» D. | |
| 1371. |
Which one of the following is a factor of the sum of first twenty-five natural numbers ? |
| A. | 6 |
| B. | 4 |
| C. | 3 |
| D. | 2 |
| Answer» D. 2 | |
| 1372. |
By which number should 0.022 be multiplied so that product become 66 ? |
| A. | 000 |
| B. | 200 |
| C. | 000 |
| D. | 600 |
| Answer» B. 200 | |
| 1373. |
A man spends $$\frac{1}{3}$$ of his income on food, $$\frac{2}{5}$$ of his income on house rent, $$\frac{1}{5}$$ of his income on clothes. If he still has Rs. 400 left with him, his income is - |
| A. | s. 4000 |
| B. | s. 5000 |
| C. | s. 6000 |
| D. | s. 7000 |
| Answer» D. s. 7000 | |
| 1374. |
If the sum of two numbers is 3 and the sum of their squares is 12, then their product is equal to - |
| A. | $\frac{3}{2}$$ |
| B. | $\frac{2}{3}$$ |
| C. | $$\frac{3}{2}$$ |
| D. | $$\frac{2}{3}$$ |
| Answer» D. $$\frac{2}{3}$$ | |
| 1375. |
$$0.\overline {001} $$is equal to - |
| A. | $\frac{1}{1000}$$ |
| B. | $\frac{1}{999}$$ |
| C. | $\frac{1}{99}$$ |
| D. | $\frac{1}{9}$$ |
| Answer» C. $\frac{1}{99}$$ | |
| 1376. |
$${\text{999}}\frac{{998}}{{999}} \times 999$$is equal to : |
| A. | 98999 |
| B. | 99899 |
| C. | 89999 |
| D. | 99989 |
| Answer» B. 99899 | |
| 1377. |
$$\left( {{3^{25}} + {3^{26}} + {3^{27}} + {3^{28}}} \right)$$is divisible by : |
| A. | 1 |
| B. | 6 |
| C. | 5 |
| D. | 0 |
| Answer» E. | |
| 1378. |
Which of the following fraction is the smallest ?$$\frac{8}{{15}},$$ $$\frac{{14}}{{33}},$$ $$\frac{7}{{13}},$$ $$\frac{{11}}{{13}}$$ |
| A. | $\frac{{8}}{{15}}$$ |
| B. | $\frac{{14}}{{33}}$$ |
| C. | $\frac{{7}}{{13}}$$ |
| D. | $\frac{{11}}{{13}}$$ |
| Answer» C. $\frac{{7}}{{13}}$$ | |
| 1379. |
If the numbers $$ \root 3 \of {9} ,\root 4 \of 20 ,\root 6 \of {25} $$are arranged in ascending order, then the right arrangement is - |
| A. | $ \root 6 \of {25} , < \root 4 \of {20} , < \root 3 \of 9 $$ |
| B. | $ \root 3 \of 9 , < \root 4 \of {20} , < \root 6 \of {25} $$ |
| C. | $ \root 6 \of {25} , < \root 3 \of 9 , < \root 4 \of {20} $$ |
| D. | $ \root 4 \of {20} , < \root 3 \of 9 , < \root 6 \of {25} $$ |
| Answer» D. $ \root 4 \of {20} , < \root 3 \of 9 , < \root 6 \of {25} $$ | |
| 1380. |
If sum of two numbers be a and their product be b, then the sum of their reciprocals is : |
| A. | $\frac{{1}}{{b}}$$ + $$\frac{{1}}{{b}}$$ |
| B. | $\frac{{b}}{{a}}$$ |
| C. | $\frac{{a}}{{b}}$$ |
| D. | $\frac{{1}}{{ab}}$$ |
| Answer» D. $\frac{{1}}{{ab}}$$ | |
| 1381. |
5358 × 51 = ? |
| A. | 73258 |
| B. | 73268 |
| C. | 73348 |
| D. | 73358 |
| E. | one of these |
| Answer» B. 73268 | |
| 1382. |
Sunil entered a shopping center and spent one half of the money that he had. When he finished his purchase he found that he had as many paise as he had rupees and half as many rupees as he had paise when he went. How much money did he have when he entered? |
| A. | s. 75.50 |
| B. | s. 98.98 |
| C. | s. 99.98 |
| D. | one of these |
| Answer» D. one of these | |
| 1383. |
If (-1)n + (-1)4n = 0, then n is |
| A. | ny positive integer |
| B. | ny negative integer |
| C. | ny odd natural number |
| D. | ny even natural number |
| Answer» D. ny even natural number | |
| 1384. |
One-third of a tower is painted black, $$\frac{5}{{11}}$$th of the remaining part is painted red and the rest is painted white. If the white part measures 60 ft.,the total height of the tower is- |
| A. | 00 ft. |
| B. | 54 ft. |
| C. | 65 ft. |
| D. | 10 ft. |
| Answer» D. 10 ft. | |
| 1385. |
The smallest number of four digits which on division by 4, 6, 10 and 15 leaves a remainder 2 in each case is: |
| A. | 020 |
| B. | 022 |
| C. | 024 |
| D. | 040 |
| Answer» C. 024 | |
| 1386. |
The LCM of two number is 45 times their HCF. If one of the numbers is 125 and the sum of HCF and LCM is 1150, the other number is: |
| A. | 15 |
| B. | 20 |
| C. | 25 |
| D. | 35 |
| Answer» D. 35 | |
| 1387. |
A virus known to cause a deadly disease, is also a rapid multiplier. It is known that it can double itself every 30 minutes. If a container is completely full of this virus after 50 hours, when was the container half empty? |
| A. | 5 hours |
| B. | 9.5 hours |
| C. | 6 hours |
| D. | 0 hours |
| Answer» C. 6 hours | |
| 1388. |
Sunny gets $$\frac{7}{9}$$ times as many marks in QA as in ENGLISH. If his total combined marks in both the papers is 90. His marks in QA is: |
| A. | 0 |
| B. | 0 |
| C. | 0 |
| D. | 0 |
| Answer» D. 0 | |
| 1389. |
The LCM of two numbers is 1020 and their HCF is 34 the possible pair of number is: |
| A. | 55, 34 |
| B. | 02, 204 |
| C. | 04, 170 |
| D. | one of these |
| Answer» D. one of these | |
| 1390. |
The product of the digits of a three digit number is a perfect square and perfect cube both is : |
| A. | 26 |
| B. | 56 |
| C. | 8 |
| D. | one of these |
| Answer» B. 56 | |
| 1391. |
The sum of 100 terms of the series 1 - 3 + 5 - 7 + 9 - 11 .......... is: |
| A. | 00 |
| B. | 200 |
| C. | 00 |
| D. | 100 |
| Answer» E. | |
| 1392. |
A string of length 221 metre is cut into two parts such that one part is $$\frac{9}{4}$$ th as long as the rest of the string, then the difference between the larger piece and the shorter piece is : |
| A. | 8 m |
| B. | 3 m |
| C. | 5 m |
| D. | 6 m |
| Answer» D. 6 m | |
| 1393. |
The four digit smallest positive number which when divided by 4, 5, 6 or 7, it leaves always the remainder as 3: |
| A. | 000 |
| B. | 257 |
| C. | 263 |
| D. | 683 |
| Answer» D. 683 | |
| 1394. |
Three mangoes, four guavas, and five watermelons cost Rs. 750. Ten watermelons, six mangoes and 9 guavas Cost Rs. 1580. What is the cost of six mangoes, ten watermelons and 4 guavas? |
| A. | 280 |
| B. | 180 |
| C. | 080 |
| D. | an't determined |
| Answer» C. 080 | |
| 1395. |
The number of numbers from 1 to 200 which are divisible by neither 3 nor 7 is : |
| A. | 15 |
| B. | 06 |
| C. | 03 |
| D. | ess than 100 |
| Answer» B. 06 | |
| 1396. |
The sum of two numbers is 18. The greatest product of these two number can be: |
| A. | 7 |
| B. | 1 |
| C. | 0 |
| D. | an't determined |
| Answer» C. 0 | |
| 1397. |
A gardener plants his garden with 5550 trees and arranged them so that there is one plant more per row as there are rows then number of trees in a row is: |
| A. | 6 |
| B. | 4 |
| C. | 6 |
| D. | 5 |
| Answer» E. | |
| 1398. |
A two digit number ab is added to another number ba, which is obtained by reversing the digits then we get three digit number. Thus (a + b) equals to: |
| A. | t least 18 |
| B. | ab |
| C. | (a + b) |
| D. | a + b) ≥ 10 |
| Answer» E. | |
| 1399. |
(112 × 54) = ? |
| A. | 7000 |
| B. | 0000 |
| C. | 6500 |
| D. | 7200 |
| E. | one of these |
| Answer» C. 6500 | |
| 1400. |
a, b, c and d are negative integers. If ab + ac + ad = 0 then a × b × c × d is always |
| A. | dd |
| B. | ven |
| C. | ero |
| D. | one of these |
| Answer» C. ero | |