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CBSE Questions

Total Questions 9982
Two men on either side of a cliff, 60m high, observe the angles of elevation of the top of the cliff to be 45 degree & 60 degree respectively. find the distance between two men.
for an A.P show that Ap+Ap+2q = 2Ap+q
how many two-digit numbers are divisible by 37?
the length of the shadow of a tower standing on level ground is found to be 2x meters longer when the sun's altitudes is 30 degree than when it was 45 degree. prove that the height of tower is (root 3+1)x meters.
What is meant by poaching?
A cubical block of side 7cm is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? find the area of the solid.
If a, b and c be the sums of first p, q and r terms respectively of an AP, show that a/p(q-r) + b/q(r-p) + c/r (p-q) = 0
find the sum of all odd integers between 2 and 100 divisible by 3.
From a solid cylinder whose height is 2.4cm and diameter 1.4cm,a conical cavity of the same height and same diameter is hollowed out.find the total surface area of the remaining solid.
a hemispherical tank full of water is emptied by a pipe at the rate of 3 4/7 litres per second.how much time will it take to empty half the tank,if its diameter is 3m.
in an AP the sum of first n terms is given by Sn = 3n sq/2 + 5n/2. find the 25th term
if P(x,y) is any point on the line segment joining the points A(a,0) and B(0,b) then show that x/a + y/b=1
solve for x 2(2x+3/x-3)=5
Solve for x: a(a2+b2)x2+b2x-a = 0 a(a square + b Square)X square+ b square x -a = 0)
A vessel is in the form of a hemispherical bowl surmounted by a hollow cylinder of same diameter.The diameter of the hemispherical bowl is 14cm and the total heigh of the vessel is 13cm.find the total surface area of the vessel.
What will be the increase in area of circle if its radius is increased by 40%?
A semi-circular sheet of paper of diameter 28cm is bent into an open conical cup. find the depth and capacity of the cup.
A bucket open at the top and made up of a metal sheet is in the form of a frustum of a cone. the depth of the bucket is 24cm and the diameter of its upper and lower circular ends are 30cm an d 10 cm respectively. find the cost of metal sheet used in it at the rate of Rs.10 per 100 Sqcm.
If the sum of first 7 terms of an AP is 49 and that of first 17 terms is 289, find the sum of its first n terms? (please do reply fast)
When was the first 'leg-before law' published?