A boat covers 78 km downstream in 3 hours, while the time taken by a boat to go 182 km upstream and comes back to the same point is 20 hours, then find the ratio of the speed of the boat in still water to the speed of the stream. a) 5: 2 b) 15: […]
Sum of two integers and their product is 90. If both the integers are greater than 1, then find the difference between the square of these two integers. a) Cannot be determined b) 108 c) 120 d) 90 e) 96 Sol: Let integers be ‘x’ and ‘y’ (x > y). According to the question: x
A person distributed Rs.75000 among three persons P, Q, and R such that P alone get Rs.15000 less than what Q and R together got. If the amount received by Q is 80% of that of R, then what percent of the total amount is given to person P? a) 60% b) 50% c) 30%
Two cars A and B are 324 away from each other and coming towards each other. The speed of car A is 5 m/s more than that of car B. If they crossed each other in 12 seconds, then find in what time car B will cross a 198 m long tunnel. a) 8 seconds
Two cars A and B are 324 away from each other and coming towards each other Read More »
A and B entered into a partnership with an investment of Rs.15000 and Rs.X respectively. After 5 months, B withdrew Rs.8000 from his investment and the ratio of A’s profit to B’s profit at the end of the year is 9: 8. Find the value of ‘X’. a) 24000 b) 16000 c) 20000 d) 14000
I. 4x = (103/5) + (222 – 212 + 13) II. (y + 2)2 = 12y – 11 a) x> y b) y> x c) x = y or relation cannot be established d) x ≤ y e) x ≥ y Sol: I. 4x = (103/5) + (222 – 212 + 13) 4x = 200
I. 4x = (103/5) + (222 – 212 + 13) II. (y + 2)2 = 12y – 11 Read More »
Q. What will come in the place of the question mark in the following series? 11520, ?, 384, 96, 32, 16 a) 1920 b) 1820 c) 1720 d) 1620 e) 1520 Sol: Logic in the series: 11520/6 = 1920 1920/5 = 384 384/4 = 96 96/3 = 32 32/2 = 16 So, missing term in
Q. What will come in the place of the question mark in the following series? 99, 115, 151, ?, 315, 459 a) 224 b) 215 c) 221 d) 212 e) 218 Sol: Logic in the series: 99 + 42 = 115 115 + 62 = 151 151 + 82 = 215 215 + 102 =
Q. The length of the rectangular room is 4x m and the breadth of the rectangular room is 75% of its length. The cost of fencing of the rectangular room at the rate of Rs.15 per meter is Rs.1050. If the ratio of the breadth of the rectangular room to the side of the cube
Q. Train A is moving at a speed of 75 km/hr and crosses a man who is running at 12 km/hr in the same direction in 12 seconds. If Train A crosses Train B which is running at the speed of 45 km/hr in the same direction in 48 seconds, then find the length of
