Brass alloy is made by mixing copper and zinc in a certain proportion. The following table shows the information related to four alloy - copper used in each alloy was of a different quality, quantity and price, whereas zinc used in each alloy was of the same quality and price @ Rs 150/kg. In none of the alloy, Weight of zinc is more than the weight of copper.
Price of brass alloy per kg = (weight of copper x rate of copper + weight of zinc x rate of zinc)/(weight of copper + weight of zinc) It is also known that W, X, Y, Z, A, B, C and D are natural numbers. Which of the following statement(s) is/are true? i. 'A' is definitely less than 'C' ii. Whenever 'W' is more than 'Z', 'A' is not less than any possible value of 'C' iii. When 'W' and 'Z' are equal, 'A' and 'D' can also be equal iv. 'Z' can take 3 values
Concentrations of 3 wines A, B and C are 10%, 20% and 30% respectively. They are mixed in the ratio 2:3:x resulting in a 23% concentration solution. Find x.
In a certain pasture there are some
cows,horses and sheep.On average , a cow grazes 42 sq.ft of grass in a
month. The corresponding number for horses and sheep being 54 and 25 sq
ft respectively. The combined average for cows and horses is 47 sq ft
and that of all the three animals combined together is 33 sq ft. What
fraction of total number of animals are sheep
a monkey climbing up a greased pole ascends 10m and slips down 2m in alternate minutes. if the pole is 64m high, how long will it take him to reach the top??
2 friends A and B simultaneously started running around circular clock track in opposite direction with a speed of 7km/hr and 4km/hr respectively. how many times they must have met when B completed 24 rounds?
a cheetah chases a deer , which is 100m ahead. the time in which deer takes 10 leaps, cheetah takes, cheetah takes 6 laps. in one leap cheetah covers 2m whereas deer covers 1m in one leap. in how many leaps would the cheetah catch up the deer?
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A trader used to make 5% profit on an item selling at usual marked price. One day, he trebled the marked price of the item and finally offered a discount of 30%. Find the percentage profit he made on the item that day.
N is a positive integer, which when divided by 16, 17 and 18 leaves remainders of 6, 7 and 8 respectively. Find the remainder when N2 + 5N + 6 is divided by 12.
A six-digit palindrome with 16 factors has its first and fourth digits equal. Find the sum of the digits of the number, given it has the minimum possible number of prime factors.
The ratio of the present ages of Ram and Bheem is x : 7. After 10 years their ages will be in the ratio 2 : 3. If x and the present ages of both Ram and Bheem are integers, what is the maximum difference between their present ages?
Options: 1.8 years 2.12 years 3.15 years 4.Cannot be determined 5.None of these