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You want to decorate your house with 300 light bulbs of four selected colors. You already have 32 red, 26 green and 9 yellow bulbs. You have no blue bulbs, each bulb costs Rs. 15 and you get 20% discount if you purchase 50 or more bulbs of the same color and 30% discount when you purchase 70 or more bulbs of new color. How much would you spend if you decorated your house with an equal number of bulbs of each color?
The pic chart given below shows the number of bulbs manufactured by a company in 6 years. The number of bulbs manufactured in a particular years is shows as a percentage of total number of bulbs manufactured in 6 years. If the total number of bulbs manufactured in 6 years is 100000, then what is the difference in the number of bulbs manufactured in year Y3 and Y5?
The number of chambers in an office is odd. Every chamber has fans and bulbs. The number of bulbs in each chamber is twice the number of fans in that chamber. The number of bulbs is the same in all the chambers. The total number of fans and bulbs in all the chambers is thirty. What is the total number of chambers in the office?
If 4 bulbs are there each of which can be defective or non-defective then what is the probability that all the bulbs are defective?
A box contains 10 electric bulbs from which 2 bulbs are defective . Two bulbs are chosen at random. What is the probability that one of them is defective?
If a box contains 10 bulbs,of which just three are defective. If a random sample of five bulbs is drawn, find the probability that the sample contains no defective bulbs.
A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that all the four bulbs are defective.
If 4 bulbs are there each of which can be defective or non-defective then what is the probability that at least one bulb is non- defective?
Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. Two person X and Y together can make 25% of total number of bricks in 4.8 days. Another person Z can make 50 bricks in a day. What is the time taken by person X and Z together to make the total number of bricks? I. Dimensions of a brick is (3cm × 4cm × 5cm) while the dimension of a cuboids when all the bricks are put together is (72cm × 80cm × 50cm) and ratio of number of days taken by X and Y alone to make the total number of bricks is 3 : 2. II. The total number of bricks is 4800 and person Y can make 150 bricks in day. III. Total volume of all the bricks together is 1.008m3 and dimension of a bricks is (5cm × 6cm × 7cm) and time taken by Z to make total number of bricks is 200 % more than the total time taken by person Y to make total number of bricks.
Two bulbs are chosen at random from 10 bulbs, of which 4 are defective. These two bulbs are fitted in a room, the chance of the room being lighted is?