A train 100 meter long takes 3 second to cross a man walking at the rate of 6km/hr in a direction opposite to that of the train. Find the speed of the train.
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A car has front 30 and rear 20. If front rotate 240 time. Find back wheel rotation.
in a company 30% are supervisors and 40% employees are male if 60% of supervisors are male. what is the probability that a randomly choosen employee is a male or female?
If PQRST is a paralellogram .What is the ratio triangle PQS & PQRST.
if A = D, B=E, C=F, VWDUW = ?
Price of product is reduced by 30%. What % should be increased to make it 100 % ?
Cost of an item is Rs 12.60 ,profit is 10% over selling price.
Mr. Beans visited a magic shop and bought some magical marbles of different colours along with other magical items. While returning home whenever he saw a coloured light, he took out marbles of similar colours and counted them. So he counted the pink coloured marbles and found that he has bought 25 of them. Then he counted 14 green marbles and then 21 yellow marbles. He later counted 30 purple coloured marbles with him. But when he reached a crossing, he looked at a red light and started counting red marbles and found that he had bought 23 Red marbles. As soon as he finished counting, it started raining heavily and by the time he reached home he was drenched. After reaching home he found that the red, green and yellow marbles had magically changed colours and became white, while other marbles were unchanged. It will take 1 day to regain its colours, but he needs to give atleast one pair of marbles to his wife now. So how many white marbles must be choose and give to his wife so as to ensure that there is atleast one pair of red, yellow and green marbles ?
A circle is inscribed in a square. Another circle is circumscribed in a square of the same side used earlier. what is the ratio of the areas of the inscribed circle to that of the circumscribed circle?
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If the data is for 10 bogies and for every 2 bogies added speed decreases by 5% what will be the speed after 5 hrs.
one fast typist type some matter in 2hr and another slow typist type the same matter in 3hr. if both do combinely in how much time they will finish.
a radioactive material of mass 16 grms in 10 years due to radiation. how many years will it take for the material to attain a mass f 1 gm
A clock gives 4 ticks consequetively. After days it has become defective & gives only 2 ticks. What is the probability that clock produces 3 ticks consequetively?
3 Answers SK Industries, TATA, TCS,
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