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From the top of a tower the angle of depression of an object on the horizontal ground is found to be 60degree. On descending 20
1. 4 answers
2. asked by Anonymous
3. 1,982 views
In right angled triangle ABC angle B=90 degreeand AB= root 34 unit. The coordinates of point B and Care (4,2)and (-1,y)
1. 5 answers
2. asked by Anonymous
3. 4,089 views
The volume of a cylinder is 48.125 cm3, which is formed by rolling a rectangular paper sheet along the length of the paper. If
1. 4 answers
2. asked by Anonymous
3. 4,553 views
90% of all students passed in Hindi, 85% in Maths and 150 students passed in both. calculate total number of students in the
1. 7 answers
2. asked by Anonymous
3. 4,444 views
the diameter of a metallic ball is 14 cm. what is the mass of the ball, if the density of the metal is 6gm per cm^3.(cm cube)?
1. 3 answers
2. asked by Anonymous
3. 421 views
If the ratio of the legs of a right triangle is 1 : 2, then the ratio of the corresponding segments of thehypotenuse made by a
1. 2 answers
2. asked by Anonymous
3. 573 views
Construct a triangle PQR with basePQ = 8.4 cm , angel P = 45 degree and PR - QR = 2.8 cm ??
1. 3 answers
2. asked by Anonymous
3. 1,271 views
A line through through the point (3,0) meet the variable line y=tx at right angle at the point P.Find in terms of t, the
1. 4 answers
2. asked by Anonymous
3. 2,686 views
find the vector and the cartesian equation of the line passing through (1,2,3) and parallel to the planes x-y+2z=5 and 3x+y+z=6
1. 1 answer
2. asked by Anonymous
3. 464 views
find the vector and the cartesian equation of the line passing through (1,2,3) and parallel to the planes x-y+2z=5 and 3x+y+z=6
1. 1 answer
2. asked by Anonymous
3. 392 views
The areas of the the three adjacent faces of a cuboid are 600 sq.cm 300sq.cm and 200 sq.cm.find the sum of the length,breadth
1. 3 answers
2. asked by Anonymous
3. 997 views
Consider the number 6135246. Jai can change this number in the following way.He can select atleast one digit and at most six
1. 3 answers
2. asked by Anonymous
3. 939 views
A cube or a cuboid had the volume the measurement of the cubiod area in the ratio 1:2:3if the difference between thee cost of
1. 1 answer
2. asked by Anonymous
3. 890 views
the simple interest of certain amount for a period of 2 years is 400 .the compound interest for the same amount for the same
1. 1 answer
2. asked by Anonymous
3. 364 views
A manufacture of furniture sells a sofa set to a retailer for Rs 23000.the retailer, in turn, sells the sofa set to a customer
1. 1 answer
2. asked by Anonymous
3. 401 views
If the ratio of the legs of a right triangle is 1 : 2, then the ratio of the corresponding segments of thehypotenuse made by a
1. 1 answer
2. asked by Anonymous
3. 339 views
From the top of a cliff 150m high, the angles of depression of two boats are 60 and 30. Find the distance between the boats if
1. 2 answers
2. asked by Anonymous
3. 802 views
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the
1. 1 answer
2. asked by Anonymous
3. 899 views
A manufacturer lists the price of the goods at Rs.240 per article. The wholesaler gets a discount of 25% on the goods from the
1. 1 answer
2. asked by Anonymous
3. 878 views
A manufacturer lists the price of the goods at Rs.240per article. The wholesaler ge6ts a discount of 25% on the goods from the
1. 2 answers
2. asked by Anonymous
3. 575 views
ABCD is a square with length of each side 1cm. An octagon is formed by lines joining the vertices of the square to the mid
1. 3 answers
2. asked by Anonymous
3. 1,316 views
ABCD is a trapezium, P and Q are mid points of the diagonals AC and BD.If AB=17cm and CD=9cm then the length of PQ is equal to
1. 2 answers
2. asked by Anonymous
3. 635 views
A moneylender 's income decreased by Rs.60 when the rate of interest dropped from 8%p.a to 31/4%p.a.What was his principal
1. 4 answers
2. asked by Anonymous
3. 1,976 views
if p(x) = px^7 + qx^3 + rx - 5where p , q , r are constants , if p(-7) = 7 then p(7) = ?
1. 1 answer
2. asked by Anonymous
3. 229 views
A man invests Rs 3,20,000 for 2 years at 12.5% p.a. compounded annually.If the income tax at the rate of 20% is deducted at the
1. 1 answer
2. asked by Anonymous
3. 402 views
If in a triangle ABC,c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right
1. 4 answers
2. asked by Anonymous
3. 451 views
If in a triangle ABC,c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right
1. 2 answers
2. asked by Anonymous
3. 1,113 views
If in a triangle ABC,c(a+b) Cos B/2 =b(c+a) Cos C/2 then the triangle is :- 1. isosceles 2. Right angled 3. isosceles or right
1. 1 answer
2. asked by Anonymous
3. 370 views
There is a garden of apples and the profit from a garden of apple trees is given byf( x ) = 70 + 30 x^2 - (1/3) x^3, where x =
1. 3 answers
2. asked by Anonymous
3. 323 views
find the equation of circleif the line 2x - y +1 = 0 touches the circle at the point (2,5) and the center of the circle lies on
1. 3 answers
2. asked by Anonymous
3. 1,077 views
If a+b+c=0 then prove that a^4+b^4+c^4=2(a^2b^2+b^2c^2+c^2a^2)
1. 1 answer
2. asked by Anonymous
3. 261 views
Integrate ( x^2cosx)/(1+sinx)^2 dxwith limits from 0 to pi/4
1. 4 answers
2. asked by Anonymous
3. 1,532 views
A number of 4 different digits is formed by using 1, 2, 3, 4, 5, 6, 7. Findthe probability that it is divisible by 5. Digits can
1. 1 answer
2. asked by Anonymous
3. 356 views
the general solution ofsin x + sin 2x + sin 3x + sin 4x = 0 ?
1. 1 answer
2. asked by Anonymous
3. 289 views
integrate 1/x dx w.r.t xanswer should be log(x) or ln(x) and why
1. 1 answer
2. asked by Anonymous
3. 311 views
show that:2^5 cos^2a sin^4a = cos6a-2cos4a- cos2a + 2
1. 1 answer
2. asked by Anonymous
3. 328 views
A person buys a refrigerator for rupees 12000. He pays rupees 6000 in cash and agrees to pay the balance in 12 annual
1. 1 answer
2. asked by Anonymous
3. 433 views
If the mean of y1 and y2 is M1and that of y1, y2, y3, y4 is M2, the mean of ay1, ay1.y3/a, y4/a is
1. 1 answer
2. asked by anoynomous
3. 237 views
Atul invested Rs 75000 in buying Rs 200 shares of ABC Ltd paying a dividend of 20%. He bought them at a rate which gave him a
1. 1 answer
2. asked by anoynomous
3. 351 views
Rana bought 500 shares of HCL at a rate that yielded him 20 % return on a 24%, Rs 350 share. Later on , the company issued a
1. 1 answer
2. asked by anoynomous
3. 380 views
Rana bought 500 shares of HCL at a rate that yielded him 20 % return on a 24%, Rs 350 share. Later on , the company issued a
1. 1 answer
2. asked by anoynomous
3. 503 views
When a number is divided by 7 and 9 , the remainder is 4 and 3. what will be the remainder of a same no. when it is divided by
1. 1 answer
2. asked by anoynomous
3. 300 views

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