Puzzles
191). A software engineer starts from home at 3 pm for evening walk. He walks at a speed of 4 kmph on level ground and then at a speed of 3 kmph on the uphill and then down the hill at a speed of 6 kmph to the level ground and then at a speed of 4 kmph to the home at 9 pm. What is the distance on one way?
192). A bag contains certain number of files. Each file is numbered with one digit of 0 to 9. Suppose the person want to get the number between 1 to 2000 (or 7000 check ). How many minimum number of files should be present in the bag.
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193). a + b + c +d = d + e + f + g = g + h + i =17.
If a = 4, what are the values of d and g. Each letter taken only one of the digit from 1 to 9.
Ans: a = 4 ,b = 2, c =6, d = 5, e = 3, f = 8, g = 1, h = 7, i = 9.
194. A frog jumps 3 ft comes back 2ft in a day. In how many day it will come out of 30ft deep well?
Ans: 28 day.
195. A-B=C
D/E=F
G+H=I
C.F=I
Ans: A=9, B=5, C=4, F=2.
196. When the actual time pass 1 hr, wall clock is 10 min behind it. When 1 hr is shown by wall clock, table clock shows 10 min ahead of 1 hr. When table clock shows 1 hr, the alarm clock goes 5 min behind it. When alarm clock goes 1 hr, wrist watch is 5 min ahead of it. Assuming that all clocks are correct with actual time at 12 noon, what will be time shown by wrist watch after 6 hr?
Ans: 5:47:32.5 (n X 60 )50/60 X 70/60 X 55/60 X 65/60.
197. A software engineer just returned from US, has eaten too much fat & put a lot of weight. Every sunday he starts walking 4 km/hr on level ground, then up at 3 km\hr, then back down hill at 6km\hr, then again on level ground at 4km\hr till he reaches his destination. If he returned home at 9 p.m., what distance did he covered?
Ans: 24 km.
198. Answer the questions from facts:-
The members of certain tribe are divided into 3 casts abhor, dravid amp; magar.
1. An abhor woman can't marry dravid man.
2. A magar woman can't marry a dravid man.
3. A son takes the caste of his father and a daughter takes caste of her mother.
5. All marriages except those mentioned, are not permitted.
6. There are no children born out of a wedlock.
199 There are 2 scales of temp A & B. It was given A varies from 14 to 133 and B varies from 36 to 87. Find the temperature, when temperature of A is equal to temp of B.
Ans: 52.5.
Let t=mx+c, c=-70 => m=51/119
a=a.51/119 -70 => a=52.5.