# Recently Active Class Vii X Mathematics Questions

• Construct tringle ABC, having given BC = 7; AB - AC = 1; Angle ABC = 45°. Pl. outline the steps. thanks... ...
replied2014-03-08 06:04:34
• A circle touches the side BC of a ∆ABC at a point P and touches AB and AC when produced, at Q & R respectively. If AQ = m * (perimeter of ∆ABC), then m = ? 2 1/2 4 1/4 ...
replied2014-03-08 05:00:43
• CP and CQ are tangents from an external point C to a circle with centre O .AB is another tangent which touches the circle at R and intersects PC and QC at A and B respectively . If CP = 11cm and BR = 4cm, then find the length ...
replied2014-03-08 04:56:46
• Find the radius of the circle inscribed in the square. *Image* 36 cm 24 cm 72 cm 30 cm Go to the site to view the image. ...
replied2014-03-08 04:50:11
• If P(A) = 0.25, P(B) = 0.5, P(A ∩ B) = 0.14, then P(A ∩ (B')) = 0.61 0.39 0.48 0.11 ...
replied2014-03-08 04:38:25
• a hollow cone is cut by a plane parallel to the base and upper portion is removed. if the curved surface area of the remainder is 8/9 of the curved surface area of the whole cone, find the ratio of the line segments into whic ...
replied2014-03-07 06:18:03
• A triangle ABC is drawn to circumscribe a circle of radius 4 cm such that the segments BD and DC into which BC is divided by the point of contact D are of lengths 8 cm and 6 cm respectively (see given figure). Find the sides ...
replied2014-03-05 08:11:36
• 7+77+777+7777+....+7777.......7(n-digit)= 7/81 (10n+1-9n-10) plzz...help to solve it..i m not getting the L.H.S. equation... ...
replied2014-01-16 22:41:43
• There are four outlet pipes of the same capacity fixed one above the other to a water tank. The first pipe is at the bottom level and the fourth pipe is at three-fourths of the height of the tank. The third pipe is equidistan ...
• In triangle ABC points L and M divide the sides AB and BC in the ratio 2:3 respectively. AM and LC intersect at point P. From point P, a line parallel to BA is drawn intersecting AC at D. Find the ratio AD:DC. Please show how ...
replied2013-12-03 08:50:19
• a2 + b2=7 a3 + b3=10 find greatest value of a+b ...
replied2013-10-23 09:18:22
• a2 + b2=7 a3 + b3=10 find greatest value of a+b ...
• (AA)^2=DCBA,where A,B,C & D are distinct digits with B being odd. Find the value of D Is the Value of D a constant or variable? ...
replied2013-10-21 10:01:25
• a wire of length 25cm is bent so as to lie along the arc of a circle of did 100cm. the angle subtended at the centre by the arc is....????? a)π b)π/2 3)π/4 d)π/8 plzz...show that how u arrived at that answer.... thanks in ...
replied2013-10-21 00:24:13
• A number when divided by 3 leaves a remainder of 3. When the square of this number is divided by 6, find the remaindr. Sir, how will I solve this problem? ...
replied2013-10-16 11:43:22
• What is the unit's digit in the product 784 x 618 x 917 x 463? Is there any special process to do so ? if there is please tell me how to do it. ...
replied2013-10-16 11:35:27
• the number of terms in an AP is even. the sum of the odd and the even numbered terms are 24 and 30 resp. if the last term exceeds the first by 10.5,the no.of terms in the AP are..????? ...
replied2013-10-08 06:09:24
• 1. According to Euclid, a line is bounded by _________________ a. Points b. Surfaces c. Both d. None of these ...
• 1)If B, C be two points lying on the line joining A and D, between A and D, then a. AB = BD b. BC = CD c. AC = CD d. AC = AB how? ...
• √3-√4/√3+√4-√7 ...
• 4 persons r selected at random out of 3 men , 2 women, and 4 children. The probability that there r exactly 2 children in the selection is..??? ...
replied2013-09-06 22:23:33
• 150 workers were engaged to finish a piece of work in a certain no. of days. four workers dropped the second day, 4 more workers dropped the third day and so on.....it takes 8 more days to finish the work now.. find the no. o ...
replied2013-09-06 02:12:21
• if a1,a2,........,an+1 arev in ap,then 1/a1a2 + 1/a2a3 +...... 1/anan+1 is.....?????? ...
replied2013-08-28 06:00:48
• If the work done by (x-2)men in (x+2)days to the work done by (x+3)men in (x-2)days is 15:16 then x is.... ...
replied2013-08-26 04:54:35
• the maximum sum of the series 20+19 1/3 +18 2/3 +18+...is...?? how 2 find it....??? ...
replied2013-08-26 04:51:46
• The greatest possible length which can be used to measure exactly the lengths 7 m, 3 m, 85 cm, 12 m 95 cm is??? ...
replied2013-08-26 04:11:26
• Two cogged wheels of which one has 32 cogs and other has 54 cogs , work into each other. If the latter turns 80 times in three quarters of a minute , how much the latter turns??? ...
replied2013-08-19 04:00:51
• Let x be the LCM of 32002– 1 and 32002 + 1. Find the last digit of x. ...
replied2013-08-15 09:04:14
• The sum of the following series will be- 2 - 1/2*4 - 1/4*6 - 1/6*8 - ............- 1/48*50 is: (a)2.24 (b)2 (c)1.76 (d)0 ...
replied2013-08-12 04:18:15
• Two cogged wheels of which one has 32 cogs and other 54 cogs work into each other.If the latter turns 80 times in three quarters of a min,how often does the other turn in 8 secs??? ...
replied2013-08-11 10:00:39