PAPER 86

1. Problem based on sets. 100 ppl. 85 are married, 70 have phone, 75 have
house, 60 have car. find ppl having house, car, phone and r married?? easy set
problem. i am not sure abt figures but find total ppl who donot have these things
and subtract from 100 to get ppl having all these.ans. 10
2. three triplets annie, fanny, danny. one spoils kitchen. parents cant find who.
only one of them is telling truth. three statements. find who spoiled kitchen.
ans. annie.
3. a problem on fencing. find length and width. very simple. u can do it easily. just
look at the condition of one side used by existing wall.ans. 12, 36
4. village and town. in between a hill. a person travels on cycle 8 km uphill and
24 downhill to reach town continuously in 2hrs 50 min. then he comes to village
in 4 hrs and 30 min. find his speed uphill and downhill.ans. uphill 6 downhill 16
5. find wizard's age. his age is 3 times son's age, his father's age is 40 more than
twice his age. total of their ages is 1240.ans. 360
6. there r some steps. i come down 7 steps then see a man at bottom. then he
comes up and i go down at same speed(my speed). when 4 steps r remaining for
me i find tht man has reached the top. for my single step downwards he took 2
steps up. find total steps.ans. 22 steps.
7. the usual temprature prob of infy. a man asks weatherman what was temp for
last 5 days. he says tht he cant remember but all r integers and did not repeat
and close to each other. their product is 12. find all temp.
ans. -1, -2, 1, 2, 3.