if tan(picosA) = cot(pisinA)
then cos{(pi/4)-A} is equal to
1/2
1/rt2
1/2rt2
rt2/3
short method if any
If toffees are bought at the rate of 25 for a rupee, how many must be sold for a rupee so as to gain 25% ?
what is the value of-
(rt5(rt5(rt5(rt5(rt5)))))
Pls Help
One man adds 5 liters of water to 15 liters of milk and another 6 liters of water to 12 liters of milk. What is the ratio of the strengths of milk in the two mixtures ?
Two alloys contain silver and copper in the ratio of 3:1 and 5:3. In what ratio the two alloys should be added together to get a new alloy having silver and copper in ratio of 2:1 ?
If x,y,z are real numbers and x+y+z=7 and xy+yz+zx=10 then the greatest value of x=
The incomes of A and B are in the ratio of 3:2 and their expenditures are in ratio of 5:3. If each saves Rs.2000, what is A's income ?
A bucket contains a mixture of two liquids A and B in the proportion of 7:5. If 9 liters of the mixture is replaced by 9 liters of liquid B, then the ratio of the two liquids becomes 7:9. How much of the liquid A was there in the bucket ?
Two candles of the same height are lighted at the same time. The first is consumed in 4 hours and the second in 3 hours. Assuming that each candle burns at a constant rate, in how many hours after being lighted, was the first candle twice the height of second ?
A person divides his total route of journey into three equal parts and decides to travel the three parts with speeds of 5, 10 and 15 km/hr, FInd his average speed.
A person runs the first 1/4th of the distance at 8 kmph, next 3/5th at 6 kmph and the remaining distance at 10kmph. Find the average speed.
There were 35 students in a hostel. If the number of students increases by 7, the expenses of the mess increases by Rs.42 per day while the average expenditure per head diminishes by Re 1. Find original expenditure of the mess.
A jar contains a mixture of two liquids A and B in the ratio of 3:1. When 15 liters of the mixture is taken out and 9 liters of liquid B is poured into the jar, the ratio becomes 3:4. How many liters of liquid A was contained in the Jar ?
a mixture contains 3/2 milk and 1/3 beer .... 20% of mixture of drawn out and replaced with same amount of milk .. this process is repeated 3 times total .. what is the final ratio?
iss type ke question ka kya fomrula tha....
abdul
- in inner city areas.
- part of the research program
- involved interviewing leenagers
- ne
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Find "x" if( x^2-x+1)(x^2+x+1)= 2/3
A alone would take 14 hours more to complete the job than if both A and B would together. If B worked alone, he took 3.5 hours more to complete the job than A and B worked together. What time, would they take if both A and B worked together ?
A man, a woman and a boy can do a job in 20 days, 30 days or 60 days respectively. How many boys must assist 2 men and 8 women to do the work in 2 days.
25 men and 15 women can complete a piece of work in 12 days. All of them start working together and after working for 8 days the women stopped working. 25 men completed the remaining work in 6 days. How many days will it take for completing the entire job if only 15 women are put on job ?
can a body have charge & still be at zero potential?
- yes,always
- depend upon the nature of the charge
- never
- yes,not always
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