Exams Solution

👉👉Caselet👈👈 Directions (01-05): Study the following information carefully and answer the given questions? There are 3 different companies A, B and C, producing cars. It has a total production of 80000. The percentage of total production of A and B is 36 % and 42 % respectively. The ratio of sold to that of unsold cars of company A and C is 7: 5 and 13: 7 respectively. The unsold cars of company B is 2100 less than the sold cars of company A. 1) Find the difference between the total sold cars of company B to the total production of company C? A.1300 B.1500 C.1700 D.1400 E.None of these 2) Find the ratio between the total number of cars sold by company A to that of company B? A.18: 7 B.25: 9 C.8: 9 D.42: 23 E.None of these 3) Find the difference between the average number of sold cars of company A and B together and the average number of unsold cars of the same companies? A.3400 B.4200 C.4500 D.3700 E.None of these 4) Total production of company B is approximately what percentage of total unsold cars of company A and C together? A.170 % B.185 % C.155 % D.200 % E.130 % 5) Find the total sold cars of company A, B and C together? A.49360 B.45520 C.43780 D.47140 E.None of these

👉👉Arithmetic of the day (Probability)👈👈 1) Two friends Harish and Kalyan appeared for an exam. Let A be the event that Harish is selected and B is the event that Kalyan is selected. The probability of A is 2/5 and that of B is 3/7. Find the probability that both of them are selected. a) 35/36 b) 5/35 c) 5/12 d) 6/35 e) None of these 2) Preethi was born between August   26th and 30th (26th and 30th excluding). Her year of birth is also unknown. What is the probability of Preethi being born on a Monday? a) 4/7 b) 1 c) 0 d) 3/7 e) None of these 3) A number is selected at random from first 40 natural numbers. What is the chance that it is a multiple of either 4 or 14? a) 1/5 b) 11/40 c) 3/10 d) 10/40 e) None of these 4) Srinaya forgot the last digit of an 11 digit land line number. If she randomly dials the final 2 digits after correctly dialing the first nine, then what is the chance of dialing the correct number? a) 1/10 b) 1/100 c) 1/1000 d) 1/11 e) None of these 5) A military man can strike a target once in 3 bullets. If he fires 3 bullets in succession, what is the probability that he will strike his target? a) 1/3 b) 19/27 c) 2/3 d) 8/27 e) None of these 6) Daniel speaks truth in 2/5 cases and Sherin lies in 3/7cases. What is the percentage of cases in which both Daniel and Sherin contradict each other in stating a fact? a) 6% b) 4% c) 3% d) 5% e) None of these 7) The probability that a bullet fired from a point will strike the target is 3/4. 5 such bullets are fired simultaneously towards the target from that very point. What is the probability that the target will be strike? a) 255/256 b) 1/256 c) 251/256 d) 1/64 e) None of these 8) Akshaya and Nikitha play a game where each is asked to select a number from 1 to 8. If the two numbers same, both of them win a prize. The probability that they will not win a prize in a single trial is: a) 1/8 b) 5/8 c) 4/8 d) 7/8 e) None of these 9) There are three events X,Y and Z, one of which must and only can happen. If the odds are 7:4 against X, 5:3 against Y, the odds against Z must be: a) 65/23 b) 47/51 c) 27/65 d) 37/53 e) None of these 10) Six male and five female stands in queue for buy a cinema ticket. The probability that they stand in alternate positions is: a) 1/258 b) 1/462 c) 1/365 d) 1/512 e) None of these

👉👉 Syllogism of the day👈👈 Syllogism Direction (1-5): Read both the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts. 1) Statements: Only a few stars are planets No galaxy is a planet Conclusions: I)Some stars are not galaxies II)No galaxy is star A.only conclusion I follows B.only conclusion II follows C.either conclusion I or II follows D.Both conclusion I and II follows E.none follows 2) Statements: Only a few schools are colleges No student is school All schools are parks Conclusions: I)All schools are colleges II)Some colleges are not students A.Only conclusion I follows B.Only conclusion II follows C.Both conclusions I and II follows D.Either conclusions I or conclusions II follows E.Neither conclusions I nor conclusions II follows 3) Statements: All books are tables Only a few pens are books Conclusions: I)All tables can be pens. II)All pens can be books. A.Only conclusion I follows B.Only conclusion II follows C.Both conclusions I and II follows D.Either conclusions I or conclusions II follows E.None follows 4) Statements: No copper is aluminium Only a few copper is silver Conclusions: I)All aluminium is silvers II)No copper is silver A.Only conclusion I follows B.Only conclusion II follows C.Both conclusions I and II follow D.Either conclusions I or conclusions II follows E.None follows 5) Statements: Only a few diagrams are circle. All squares are circles Conclusion: I)All diagrams are squares are a possibility. II)Some square can be Diagrams. A.Only conclusion I follows B.Only conclusion II follows C.Both conclusions I and II follows D.Either conclusions I or conclusions II follows E.None follows

👉👉Puzzle of the day👈👈 Designation puzzle Direction (1-5): Study the following information carefully and answer the below questions. There are eight employees of the educational institute named M, N, O, P, Q, R, S, and T. They have different designations starting from Clerk, Head Clerk, Assistant Professor, Professor, HOD, Supervisor, Principal, and Director. All the designations given are to be considered in a given order (as Clerk is considered as Junior-most rank and Director is considered as the Senior-most rank). Only two persons are junior rank to O. S is three ranks senior to Q. Q’s rank is neither immediate above nor immediate below to O. R is immediate senior rank to M. P is a Head Clerk. N is two ranks junior to M. T is not a Supervisor.