InterviewSolution
Saved Bookmarks
InterviewSolution
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
A pipe can empty a tank in 15 hours and another can in 10 hours. If both the pipes are opened simuitaneously, how long will it take to completely empty a full tank ? |
|
Answer» 6 hours |
|
| 152. |
P can complete work in 12 days working 8 hrs a day. Q can complete the same work in 8 days working10 hrs a day. If both P and Q working 8 hrs a day in how many days can they complete the work? |
|
Answer» 5 5/11
|
|
| 153. |
10 men can prepare 20 toys in 12 days working 15 hours a day. Then in how many days can 24 men prepare 32 toys working 20 hrs a day? |
|
Answer» 4 days
|
|
| 154. |
X can do a piece of work in 40 days. He works at it for 8 days and then Y finished it in 16 days. How long will they together take to complete the work? |
|
Answer» 40/3 DAYS Work DONE by X in 8 days = ( 1/40 x 8 ) = 1/5 . |
|
| 155. |
Two pipes can fill a tank in 12 hours and 15 hours respectively. A third pipe can empty it is 20 hours. If the tank is empty and all the 3 pipes are opened then the tank will be full in ? |
|
Answer» 10 hrs |
|
| 156. |
A and B can do a piece of work in 12 days and 16 days respectively. Both work for 3 days and then A goes away. Find how long will B take to complete the remaining work? |
|
Answer» 9 days
|
|
| 157. |
A and B can do a piece of work in 45 days and 40 days respectively. They began to do the work together but A leaves after some days and then B completed the remaining work in 23 days. The number of da |
|
Answer» 9 NA |
|
| 158. |
X and Y can do a piece of work in 20 days and 12 days respectively. X started the work alone and then after 4 days Y joined him till the completion of the work. How long did the work last? |
|
Answer» 10 days
|
|
| 159. |
One person takes 5 minutes to fill a bottle. If from 10 am to 11:20 am, 1904 bottles are to be filled, how many persons should be employed on this job ? |
|
Answer» From 10 am to 11.20 am = 80 mins By rule of fraction: |
|
| 160. |
A certain number of men can do a work in 54days. If there were 6 men more it could be finished in 6 days less. How many men were there in the beginning? |
|
Answer» m(54) = (m+6)(48) |
|
| 161. |
A does 20% less work than B. if A can complete a piece of work in 7 ½ hours, then B can do it in |
|
Answer» B can finish the WORK in 80% of 7 ½ hours of TIME |
|
| 162. |
A takes twice as much time as B or thrice as much time as C to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in |
|
Answer» 6 days Suppose A, B and C TAKE X, x/2 and x/3 days RESPECTIVELY to finish the work. |
|
| 163. |
A and B together can complete a piece of work in 4 days if A alone can complete the same work in 12 days, in how many days can B will alone complete that work? |
|
Answer» 6 Days NA |
|
| 164. |
A alone can complete a piece of work in 6 days and B alone can complete it in 12 days. In how many days can A and B together complete the same piece of work ? |
|
Answer» A's one day's work = 1/6 |
|
| 165. |
A can do a piece of work in 10 days, B in 15 days. They work together for 5 days, the rest of the work is finished by C in two more days. If they get Rs. 3000 as wages for the whole work, what are the |
|
Answer» NA |
|
| 166. |
3 men or 5 women can do a work in 12 days. How long will 6 men and 5 women take to finish the work? |
|
Answer» 4 days 3 men = 5 women |
|
| 167. |
A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is |
|
Answer» 8/15 A's 1 DAY's work = 1/15 ; |
|
| 168. |
A and B together can complete a work in 3 days. They start together. But, after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in |
|
Answer» 6 days A and B’s 1 DAY’s work = 1/3 |
|
| 169. |
A and B can do a work in 12 days, B and C in 15 days, C and A in 20 days. If A, B and C work together, they will complete the work in? |
|
Answer» 10 DAYS (A + B)'s 1 day work = 1/12; (B + C)'s 1 day work = 1/15; (A + C)'s 1 day work = 1/20 Adding, we get: 2(A + B + C)'s 1 day work = (1/12 + 1/15 + 1/20) = 1/5 (A + B + C)'s 1 day work = 1/10 So, A, B and C TOGETHER can complete the work in 10 days. |
|
| 170. |
A and B can finish a work in 16 days while A alone can do the same work in 24 days. In how many days B alone will complete the work? |
|
Answer» B = 1/16 – 1/24 = 1/48 => 48 DAYS |
|
| 171. |
If 3 persons can do 3 times of a particular work in 3 days, then, 7 persons can do 7 times of that work in |
|
Answer» That is, 1 person can do ONE TIME of the work in 3 days. |
|
| 172. |
A can do a piece of work in 12 days, while B can do it in 8 days with the help of C, they finish the work in 4 days. Then C alone can do the work in |
|
Answer» 24 days A and B together can do the work in 12 × 8/20 = 96/20 days |
|
| 173. |
A can do the piece of work in 20 days which B can do in 12 days. B worked at it for 9 days. A can finish the remaining work in |
|
Answer» 5 days NA |
|
| 174. |
A works twice as fast as B. if B can complete a work in 12 days independently, the number of days in which A and B can together finish the work is: |
|
Answer» 4 days That is, if b ALONE can finish the work in 12 days, |
|
| 175. |
A can finish a work in 18 days and B can do the same work in half the time taken by A. Then, working together, what part of the same work they can finish in a day? |
|
Answer» 1/6 B ALONE can do the same work in 9 DAYS |
|
| 176. |
B and C work together can complete work in 8 days A and B together can complete same work in 12 days and A& C together complete in 16 days in total how many days A,B and C complete the same work toge |
|
Answer» 7 5/13 (A+B+C)’s 2 day WORK = (1/8+1/12+1/16 ) = 13/48 |
|
| 177. |
The rates of working of A and B are in the ratio 3 : 4. The number of days taken by them to finish the work are in the ratio: |
|
Answer»
|
|
| 178. |
3 men, 4 women and 6 children can complete a work in 7 days. A woman does double the work a man does and a child does half the work a man does. How many women alone can complete this work in 7 days? |
|
Answer» 7 NA |
|
| 179. |
Ashokan is thrice as good a workman as Nitin and is therefore able to finish a piece of work in 40 days less than Nitin. Find the time in which they can do it working together. |
|
Answer» 15 days NA |
|
| 180. |
Five bells begin to ring together at intervals of 8 sec, 6, sec, 4 sec, 12 sec and 10 sec respectively. How many times will they ring together in the duration of one hour (excluding the ring at the st |
|
Answer» 30 LCM of 8, 6, 4, 12 and 10 is 120. |
|
| 181. |
An empty pipe can empty 1/4 of a cistern in 15 minutes. In 5 minutes, what part of the cistern will be emptied ? |
|
Answer» 1/12 1/12 |
|
| 182. |
'A' can complete a piece of work in 5 days and ' B ' can complete the same piece of work in 10 days. In how many days can 'A' and ' B ' together complete the same work ? |
|
Answer» 31 days A can do 1/5 work per day. |
|
| 183. |
A works twice as fast as B. If B can complete a work in 12 days independently, the number of days in which A and B can together finish the work in : |
|
Answer» 4 days NA |
|
| 184. |
Three workers working all days can do a work in 10 days. But one of them having other employment can work only half time. In how many days the work can be finished? |
|
Answer» 12 days Sum of each PERSONS’ ONE day’s work = 1/3 ×10 + 1/3 ×10 + 1/3× 20 = 1/30 + 1/30 + 1/60 |
|
| 185. |
Anita, Indu and Geeta can do a piece of work in 18 days, 27 days and 36 days respectively. They start working together. After working for 4 days. Anita goes away and Indu leaves 7 days before the work |
|
Answer» 16 days NA |
|
| 186. |
A can do a piece of work in 4 hours; B and C together can do it in 3 hours, which A and C together can do it in 2 hours. How long will B alone take to do it? |
|
Answer» 12 HOURS A's 1 HOUR work = 1/4; (B + C)'s 1 hour work = 1/3; (A + C)'s 1 hour work = 1/2 (A + B + C)'s 1 hour work = (1/4 + 1/3) = 7/12 B's 1 hour work = (7/12 + 1/2) = 1/12 B ALONE will take 12 hours to do the work. |
|
| 187. |
A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone. |
|
Answer» 1 ½ days
|
|
| 188. |
A and B can do a piece of work in 15 days. B and C can the same work in 10 days and A and C can do the same in 12 days. Time taken by A, B and C together to do the job is |
| Answer» | |
| 189. |
A take twice as much time as B or thrice as much time to finish a piece of work. Working together, they can finish the work in 2 days. B can do the work alone in? |
|
Answer» Suppose A, B and C TAKE x, x/2 and x/3 respectively to finish the work. Then, (1/x + 2/x + 3/x) = 1/2 6/x = 1/2 => x = 12 So, B takes 6 hours to finish the work. |
|
| 190. |
12 men complete a work in 9 days. After they have worked for 6 days, 6 more men join them. How many days will they take to complete the remaining work? |
|
Answer» 2 days 12 men's 6 day's work = 1/9 * 6 = 2/3 Remaining work = 1 - 2/3 = 1/3 18 men's 1 day work = 1/108 * 18 = 1/6 1/6 work is done by them in 1 day. 1/3 work is done by them in 6 * 1/3 = 2 days. |
|
| 191. |
'A' can do a work in 20 days and 'B' can do it in 30 days. If'B' leaves the job after six days, in how many day will 'A' do the remaining work ? |
|
Answer» Number of days = (30-6) X 20/30 = 24x20/30 = 16 |
|
| 192. |
Two persons A and B can finish a piece of work in 60 days, while A, B, and C can finish the same work in 40 days. How many days will C alone take to finish the work ? |
|
Answer» 120 days WORK DONE by A and B TOGETHER in one day = 1/60 |
|
| 193. |
3 men or 6 women can do a piece of work in 20 days. In how many days will 12 men and 8 women do the same work? |
|
Answer» 15/4 3M = 6W ---- 20 days |
|
| 194. |
A and B can do a piece of work in 40 days and 50 days respectively. They work together for 10 days and B leaves. In how many days the whole work is completed? |
|
Answer» (A+B)’s 10 days work = 10[1/40+1/50]=10[5+4/200]= 9/20 |
|
| 195. |
A can finish a work in 12 days and B can finish the same work in 24 days. How many days will they take to finish the work together ? |
|
Answer» 8 DAYS Part of WORK that A can do in ONE DAY= 1/12 |
|
| 196. |
18 women can complete a work in 12 days and 12 men can complete the same work in 9 days. In how many days will 8 men and 8 women complete that work? |
|
Answer» 9 NA |
|
| 197. |
Twelve men and six women together can complete a piece of work in four days. The work done by a women in one day is half the work done by a man in one day. If 12 men and six women started working and |
|
Answer» 2(1/2) Work done by a women in one day = 1/2 (work done by a MAN/day) One women's CAPACITY = 1/2(one man's capacity) One man = 2 women. 12 MEN = 24 women. 12 men + 6 women = 30 women 30 women can complete the work in four days. In the FIRST 2 days they can complete 1/2 of the work. Remaining part of the work = 1/2. If 6 men leave and 6 new women join, then new work force = 30 women - 12 women + 6 women = 24 women. Time taken by them to complete the remaining work = 1/2 (Time taken by 24 women to complete the work) = 1/2 * (30 * 4)/24 = 2 (1/2) days. |
|
| 198. |
Eight men, ten women and six boys together can complete a piece of work in eight days. In how many days can 20 women complete the same work if 20 men can complete it in 12 days? |
|
Answer» Cannot be determined Let the NUMBER of UNITS which can be completed by each man, each WOMEN and each BOY be m/day, w/day and b/day RESPECTIVELY. Work = 8(8m + 10w +6b)units = 12(20m) 10w +6b = 22m b is unknown. We cannot find the relation between m and w. We cannot answer the question. |
|
| 199. |
A, B and C can complete a piece of work in 24,6 and 12 days respectively.Working together, they will complete the same work in: |
|
Answer» 24/7 days NA |
|
| 200. |
A alone can complete a work in 16 days and B alone can complete in 12 days. Starting with A they work on alternate days. The total work will be completed in? |
|
Answer» 13 ¾ (A+B)’s 2 DAY work = 1/16 + 1/12 = 7/18 |
|