If the point P(x,y) is equidistant from the points A(a-b, a+b) and B(a+b, b-a) then prove bx=ay.
A villager wentto a hotel in a town with his big family. They consumed 23 idlies, 18 pooris, 7 dosas and 19 vadas. The bill come to Rs. 108. On next day, they consumed 34 idlies, 8 vadas, 22 pooris and 7 dosas. The bill came to Rs. 114. If an idli costs the same as a vada, what is the cost of one poori?
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Q.1=DRAW THE GRAPH OF x+y+1=0 and 3x +2y-12=0.Determine the coordinates of the vertices of the triangle formed by these lines and x axis .Calculate the area bounded by these lines and x axis.
how to solve (a-b)x + (a+b)y = (a2-2ab-b2) , (a+b) (x+y)=a2+b2. by cross multiplication method
a plane left 30 minutes later than the scheduled time and inorder to reach the desination, 1500km away in time. It has to increase the speed by 250km/h from the usual seed. Find the usual speed?
solve for x and y
x / a + y / b = 2 ; ax - by = a2 - b2
draw the graph of the equation
y=2x-2 and y=4x-4 and find the area of the triangle bounded by these lines and axis by y.
A boat goes 30 Km upstream and 44 KM downstream in 10 hours.In 13 hours, it can go 40 KM upstream and 55 KM down- stream. Determine the speed and that pf the boat in still water....????
kindly explain this question....
2 women and 5 men can together finish an embroidery work in 4 days, while 3 women and 6 men can finish in 3 days. find the time taken by 1 woman alone to finish the work, and also that taken by 1 man alone
A man travels 600km partly by train and partly by car. If he covers 400km by train and the rest by car, it takes him 6 hours and 30 minutes. But if he travels 200 km by train and rest by car, he takes half an hour longer. Fine the speed of the train and that of the car
Students of a class are made to stand in rows. If one student is extra in a row, there would be 2 rows
Points A and B are 90 km apart from each other on a highway. A car starts from A and another from B at the same time. If they go in the same direction they meet in 9 hours and if they go in opposite directions they meet in 9/7 hours. Find their sppeds.
Places A and B are 100 km apart on a highway. One car starts from A and another
for what value of K will the following pair of linear equation have no solution
covered a certain distance at a uniform speed. If the train would
have been 10 km/h faster, it would have taken 2 hours less than the
scheduled time. And if the train were slower by 10 km/h; it would
have taken 3 hours more than the scheduled time. Find the distance
covered by the train.
a milkman has a drum half full of milk and a largerone twice the capacity of the smaller onewith 1/4 full of milk. he sdds water to both the drums such that both the drums are full. the milk in both the drums are emptied intoa tub. what is the fraction of milk to that of water in the tub?
A train covered a certain distance at a uniform speed. If the train would have been 6km/hr. faster, it would have taken 4 hours less than the scheduled time. And if the train were slower by 6km/hr. it would have taken 6 hours more than the scheduled time. Find the length of the journey.
Solve for x and y :
A sailor goes 8 km downstream in 40 minutes and returns in 1 hour.Determine the speed of the sailor in still water and the speed of the current?
3. When lines l1 and l2 are parallel, then the graphical solution system of linear equation have
(a) infinite number of solutions (b) unique solution
(c) no solution (d) one solution
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