logarithm aptitude questions
6. If log10 7 = a, then log10 1 is equal to: 70 A. – […]
6. If log10 7 = a, then log10 1 is equal to: 70 A. – […]
1. Which of the following statements is not correct? A. log10 10 = 1 B. log (2 + 3) =
11. Find the ratio in which rice at Rs. 7.20 a kg be mixed with rice at Rs. 5.70 a
6. A dishonest milkman professes to sell his milk at cost price but he mixes it with water and thereby
1. A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of
11. A boatman goes 2 km against the current of the stream in 1 hour and goes 1 km along
6. A boat running downstream covers a distance of 16 km in 2 hours while for covering the same distance
1. A boat can travel with a speed of 13 km/hr in still water. If the speed of the stream
11. One pipe can fill a tank three times as fast as another pipe. If together the two pipes can
6. Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3
1. Three pipes A, B and C can fill a tank from empty to full in 30 minutes, 20 minutes,
11. A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts
6. A man completes of a job in 10 days. At this rate, how many more days will it takes
1. 3 pumps, working 8 hours a day, can empty a tank in 2 days. How many hours a day
6. The ratio of the number of boys and girls in a college is 7 : 8. If the percentage
1. A and B together have Rs. 1210. If of A’s amount is equal to of B’s amount, how much
11. (243)n/5 x 32n + 1 = ? 9n x 3n – 1 A. 1 B. 2
6. (256)0.16 x (256)0.09 = ? A. 4 B. 16 C. 64 D. 256.25 Answer & Explanation Answer: Option A
1. (17)3.5 x (17)? = 178 A. 2.29 B. 2.75 C. 4.25 D. 4.5 Answer & Explanation Answer: Option D
11. 625 x 14 x 11 is equal to: 11 25 196 A. 5 B. 6 C. 8 D. 11
6. If a = 0.1039, then the value of 4a2 – 4a + 1 + 3a is: A. 0.1039
1. The cube root of .000216 is: A. .6 B. .06 C. 77 D. 87 Answer & Explanation Answer: Option
11. In a regular week, there are 5 working days and for each day, the working hours are 8. A
6. A sum of Rs. 1360 has been divided among A, B and C such that A gets of what
1. A man has Rs. 480 in the denominations of one-rupee notes, five-rupee notes and ten-rupee notes. The number of