Q: Choose the correct option. A bag contains 2 red, 3 green and 2 blue balls. Two balls are drawn at random. What is the probability that none of the balls drawn is blue?
Solution: Here is no explanation for this answer
Q: Choose the correct option. During a given week A programmer spends 1/4 of his time preparing flow chart, 3/8 of his time coding and the rest of the time in debugging the programs. If he works 48 hours during the week, how many hours did he spend debugging the program?
Solution: Time taken for flow chart or coding=1/4 +3/8= 5/8 part Remaining part of job 3/8 part spend in debugging the program 1 part of program he take 48 hour => 3/8 part of program take 18 hour.
Q: Choose the correct option. The dimensions of a certain machine are 48" X 30" X 52". If the size of the machine is increased proportionately until the sum of its dimensions equals 156", what will be the increase in the shortest side?
Solution: 48+30+52=130, then 156-130=26 the "proportionately" in the shortest side means 30/130*26=6"
Q: Choose the correct option. A tape manufacturer reduces the price of his heavy duty tape from Rs.30/- to Rs.28/- a reel and the price of a regular tape from Rs.24/- to Rs.23/- a reel. A computing center normally spends Rs.1440/- a month for tapes and 3/4 of this is for heavy duty tapes. How much will they save a month under the new prices?
Solution: Hd tape = (3/4)*1440 = 1080 Hd tape + Reg tape = 1440 (3/4)*1440 + Reg tape = 1440 SO, Reg tape = 360 HD tape = 1080 no. of reg tape = 360/24 = 15 no. of HD tape = 1080/30 = 36 For new price, Hd tape savings = (30-28) = 2 Reg tape savings = 24-23 = 1 Total savings = (36*2)+(15*1) = 87
Q: Choose the correct option. If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
Solution: the exact time is 11 am then 30miles/ph reach it on 10am 20 miles/ph reach it on 12am if they start walking in 6am then 30m/ph-(10am-6am) 4h*30=120miles 20m/ph-(12am-6am) 6h*20=120miles
Q: What was the difference in profit between 1983 and 1984? q4interview-bar-chart-1
Solution: Difference in profit between 1983 and 1984 = Rs. 20 Lakhs - Rs.10 lakhs =Rs.10 lakhs.
Q: How many years was the income more than the average income of the given years? q4interview-bar-chart-1
Solution: Average income =Rs. (30+50+40+60+60)/5 = Rs. 48 lakhs. Hence the income was more than average income in the years 1983,1985, 1986
Q: What percentage of the income was spent on transport and other items? q4interview-pichart-1
Solution: Clearly 25o of income was spent on transport and other items.
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