Saved Bookmarks
This section includes InterviewSolutions, each offering curated multiple-choice questions to sharpen your knowledge and support exam preparation. Choose a topic below to get started.
| 71551. |
\sqrt { 2 } = 1.141 \text { and } \sqrt { 3 } = 1.732 \text { then calculate } \frac { 4 } { 3 \sqrt { 3 } - 2 \sqrt { 2 } } + \frac { 3 } { 3 \sqrt { 3 } + 2 \sqrt { 2 } } |
|
Answer» 4/(5.196-2.828)+ 3/(5.196+2.828)1.689+0.372.06 |
|
| 71552. |
fr fromrip cutWhat is thcture is painted orl4 Apicin of 2.5 cm along each of its0ular hall has 10 m long and 7 m broad. A carpetving a margin of I m near the walls. Find the area of thea margincarpet. Aleoarea of the un covered floor.outer length and breadth of a photo frame is 80 cm.50 cm. 1f the widh dvisible?the frame is 3 em all around the photo. What is the arca of the picture tout wll berl-othwaycantre and differentong ardrocăš2.5 m alongta total area af |
|
Answer» Area of cardboard = 50*30 = 1500 sq.cmnow, area including the margintherefore, length = 50+2.5+2.5 =55 breadth = 30+2.5+2.5 = 35whole area = 55*35 = 1925sq.cmhence, area of margin = 1925-1500 =425 sq.cm |
|
| 71553. |
(1) The volume of a cylinder is 200 cm3. Its height is 10 cm. Find the area of itsbase. |
| Answer» | |
| 71554. |
1 cm3 of iron weight 7.5 ghalll.) A contractor construction job specifies a penalty for delay of completiecertain date as follows. Rs. 200 for the first day. The penalty for eachday being Rs. 50 more than for the preceding day. How much money thhas to pay as penalty if he has delayed the work by 30 days ?(OR)A Rectangular park is to be designed whole breadth is 3m less than |
|
Answer» 1 2 thanks |
|
| 71555. |
rodius of cisele 25 cm ardceotse e ciscle is |
| Answer» | |
| 71556. |
a) A rectangle of length 15 m and breadth 6 m or a square of side S m.(b) A rectangle of length 14 m and breadth 35 cm or a square of side 3 m5. The perimeter of square is 48 m. find its area.The area of a square is 625 em', find its perimeter in metres ?hat happens to the area of a rectangle when(a) ts length is double and breadth is halved ? (b) ts length is double and breadth remain thsame ?(c) Its length and breadth both doubled ? |
|
Answer» Since, we know area of a rectangle=length×breadth1)If its length is doubled and breadth is halved, the area remains same.2) If its length is doubled and breadth remains the same, then the area becomes twice that of the original one.3) If its length and breadth both are doubled, then its area becomes 4 times of the original one. यह कितने बीघा खेत होगा 80 cm a man takes 5 round a square park having each side 40 m. find the total distance covered by him |
|
| 71557. |
The area of a triangle is 72 cm2 and the three altthe perimeter of the triangle.itudes measure 24 cm, 18 cm and 16 em. Find |
|
Answer» area of ∆ = 1/2*(base)*(height) so, base = 2∆/height = 2∆/h so, base1 = 2*72/24 = 6cm base2 = 2*72/18 = 8cm base3 = 2*72/16 = 9cm so, perimeter will be sum of all bases = 6+8+9 = 23cm |
|
| 71558. |
2.Find the area of rhombus whose two diagonals are 16 em and 9 cm. |
| Answer» | |
| 71559. |
e l a Phombus in which each side is 12 cm and height is 7.5 cm.14. Find the area of a rhombus in which each side is 10 cm and one of whose diagonals is15. The area ofa hom |
| Answer» | |
| 71560. |
/The sum ofthe digits ofa 2-digit number is 9, Ifthe numberobtained by interchanging the order of digits is 27 morethan the original number, find the number. |
| Answer» | |
| 71561. |
The sum ofa two digit number and the number obtained by reversing the digits is 66, Ifthedigits of the number differ by 2, find the number. How many such numbers are there? |
| Answer» | |
| 71562. |
ăŁ?Assume Ď =-, unless stated otherwise.Diameter of the base of a cone is 10.5 em and its slant height is 10 em. Find tis curvedif ito lnt hoiht is 21 m and diameter of its basend thesrface area. |
|
Answer» Given: Diameter= 10.5 cm Radius (r) = 10.5/2 cm = 5.25 cm Slant height (l) = 10 cm Curved surface area of the cone = (πrl) =(22/7 × 5.25 × 10) =165 cm² Hence, the curved surface area of a cone =165cm² |
|
| 71563. |
1-A metallic sphere of radius 4.2 cm is melted and recast into the shape of aradius 6 crm. Find the height of the cylinder. |
| Answer» | |
| 71564. |
( a ) \frac 1 2 \quad ( b ) \frac \sqrt 3 2 \quad ( c ) \frac 1 \sqrt 2 ( d ) N |
|
Answer» Sin80= cos20so sin^2 80- sin^220° 0.98- 0.830.15 |
|
| 71565. |
1. The base of a right-angled triangle is 8 emand hypotenuse is 10 em. Calculate its area: |
| Answer» | |
| 71566. |
loo and200 cLi υ i s (b) e |
| Answer» | |
| 71567. |
4z /\/\M& is e osclinalt Od“ A loo\»d on Ko oENSN o SV |
|
Answer» app is best known for its part in this country, but |
|
| 71568. |
(1) The volume of a cylinder is 200 cm3. Its height is 10 em. Find the area of itsbase. |
|
Answer» Volume of cylinder = pi*r*r*hGiven h = 10 cm, Volume of cylinder = Area of base*h Then, Area of base = Volume / h = 200/10 = 20 cm^2 |
|
| 71569. |
① Find \e Sum of au the odd nurnbers Lynnbetween loo onel 20u. |
| Answer» | |
| 71570. |
T ® L enen0 ¢ = loo Jool L2% Mofaaas Lo 4 *60 छीन) oo geneds 9.,._/mp“ ® 1७6> o (9 oo |
|
Answer» 50% of x = 100 x = 100*100/50 x = 100*2 x = 200 Like my answer if you find it useful! |
|
| 71571. |
loo2x21000hemicphere ends on botbGalids Thlrndard 35 Cm espectiuely findh anthe total surface areaof sold35 cm |
|
Answer» The formulae is correctly written. Put the values of r and h to get the result. 2525 |
|
| 71572. |
In the picture, all sides ofarhombus are tangents to acircle.(2)4 cmDraw this picture in yournotebook |
|
Answer» Question you have submitted is incomplete. Please post a complete question. its complete It is an activity to be done yourself. |
|
| 71573. |
lhe area of the field.The diagand 12 cm. Findonals ofa rhombus are 7.5 cmits area |
| Answer» | |
| 71574. |
Find the perimeter of the rel&. The dingonals ofa rhombus measure 16 em and 30 cm.luFind its perimeter |
| Answer» | |
| 71575. |
Ifthe diagonals ofa parallelogram are equal, then show thatShow that if the diagonals of a quadrilateral bisect each other at ngis a rhombus.her at right angles, then itht angles. |
| Answer» | |
| 71576. |
18 201s-DOMATHEMATICSFILL IN THE BLANKS :If the radius of the circle is 5 crm15%, thents diameter is100MATCH THE FOU |
|
Answer» diameter id double of th radius I.e. diameter=2×radiusdiameter=2×5diameter=10cm |
|
| 71577. |
5. The diameter of a circle is 7 cm. its circumference is(a) 44 cm (b) 22'cm (c) 28 cm (d) 14 crm |
| Answer» | |
| 71578. |
\left. \begin{array} { l l } { \text { The value of } ( \omega ^ { 2 } + \omega - 1 ) ^ { 3 } } \\ { 8 } & { b ) - 8 \quad c ) 16 } \end{array} \right. |
| Answer» | |
| 71579. |
(Use 3.14), find the diameter of4. If the volume ofaright circular cone of height 9 crm is 487cm, find the dits base.2 5 m is 12 m deep. What is its capacity in kilolit |
| Answer» | |
| 71580. |
10 emurat ule area or a crrcle is 38.5 sq. In, hnd Itscircumference.4 cm onFind the area of the shaded region in the figure given alongside. |
|
Answer» scholr is the best app |
|
| 71581. |
60 cm. Find the vhCBSE 201524. Water is flowing through a cylindrical pipe of internal diameter 2 cminto a cylindrical tank of base radius 40 cm, at the rate of 0.4 m persecond. Determine the rise in level of water in the tank in half an hour.CBSE 2013 |
|
Answer» thanks bhai .In my book the answer is given wrong.that's why I uploaded the question on scholar |
|
| 71582. |
CBSE 2015. Water is flowing through a cylindrical pipe of internal diameter 2 cm,into a cylindrical tank of base radius 40 cm, at the rate of 0.4 m persecond. Determine the rise in level of water in the tank in half an hour.CBSE 2013 |
| Answer» | |
| 71583. |
ਵਜ਼ਨ(5 x 100)(3 x 35) .1 x So) • 51 x 10 - 1 |
|
Answer» 500,105,50,70 is the answer of this |
|
| 71584. |
5 x = 100 |
|
Answer» 5x = 100 x = 100/5 x = 20 |
|
| 71585. |
e 1s 16 m. Find the cost of levebthe form ofa rhombus has each side of length 64 m and altituda square field which has the same area as that of a rhombus?2Z. A field in16 |
| Answer» | |
| 71586. |
(22 From a circular sheet of radius 10 cm, a disc of radius 3 cm is cut out and the portion of the sheet left behind is0.35 per cm: Find the cost of painting the sheet (Use Ď-)22painted at the rate ofOR |
|
Answer» Step-by-step explanation: The radius of circular sheet is 10 cm We have to find Area of outer sheet Area of outer sheet = πr² = 22 / 7 × (10)² = 22/7 × 100 ` = 314.28 cm² Now we have to find out the Area of cut out sheet radius of cut out sheet = 3 cm Area of cut out sheet = πr² =22/7 × (3)² = 22/7 × 9 = 28.28 cm² Area of remaining sheet = area of outer sheet - area of cut out sheet = 314.28 - 28.28 = 286 cm² Cost of painting per cm = Rs. 0.35 Cost of painting 286 cm = 286 × 0.35 =Rs . 100.10 Hence the cost is Rs. 100.10 ok |
|
| 71587. |
Find the circumference of the circles with the following radius: (Take π)(a) 14 cm(b) 28 mm(c) 21 cm |
| Answer» | |
| 71588. |
copper,zinc03s.went to school for 260 days in a session. If his attendance was 80%, find the number of days on which%and the rest is nickel. How muchís nickel in 1.5 kg alloy?the school was open. |
|
Answer» No. of days rajat went to school = 260 days now if he made 80% attendance then 80% of full day = 260=> 0.8*(full day ) = 260=> no. of days School was open = 260/0.8 = 325 |
|
| 71589. |
12 If(s-a)-5 crmIf(s-a) 5cm(s-b) 10 cm(s-c) 1 cm. Find a, b & cwhere a, b & c are sides of the triangle. |
| Answer» | |
| 71590. |
( 3 + 5 \omega + 3 \omega ^ { 2 } ) ^ { 6 } = |
| Answer» | |
| 71591. |
Find the dathogonal tsajec taaies of a1S paCumelco(rD |
|
Answer» hit like if you find it useful |
|
| 71592. |
24. Water is flowing through a cylindrical pipe of internal diameter 2 cm,into a cylindrical tank of base radius 40 cm, at the rate of 0.4 m persecond. Determine the rise in level of water in the tank in half an hour.ICBSE 2013) |
| Answer» | |
| 71593. |
9. Why did weavers in Silesia revolt in 1845? |
|
Answer» In 1845, weavers of Silesia had led a revolt of against contractors who supplied them raw materials. They gave them order for finished textiles but reduced their payments. (1) The workers were living in absolute poverty and misery. (2) On 4 June at 2 P.M., a large crowd of weavers emerged from their homes and marched in pairs up to the mansion of the contractor. (3) They were demanding higher wages. But, they were treated with scorn and threats. |
|
| 71594. |
ORTODO 5 x 100+71ce between the place values of the two nines in 79520986ind the difference bet |
|
Answer» tq |
|
| 71595. |
rea of the inscribed circle,21. Theside ofa square is 10 cm. Find () the area of theand(ii) the area of the circumscribed circle. Take Tt 3.14. |
| Answer» | |
| 71596. |
NNINGS 14.3Find the circumference and area of circles given that(o Radius 21 cmDiameter 70 mm2 Minoo has cut out two semi-circular pieces from a square sheetof size 10 cm10 cmigure (a)]. Find the area and perimeter of the figure obtained. (Take Tt 3.14)Find the area swept by the 3.5 cm long minute hand of a clock in 2 hours.A circular park of 20 m diameter has a circular path of width 1 m just insidethe boundary. Find the area of the path.3.10 cm. In a rectangular garden of dimensions 75 m x 50 m, a circular pond is con-structed at the centre with radius 21 m. Find the area of the land left out.Figure (a)a5 Find the perimeter of the adjoining Figure (b). (Take Tt 3.14)rodius 42 cm. |
| Answer» | |
| 71597. |
Sainik School, 2010-11]18. A school starts at 8:20 am andcloses at 1:50 pm. Find theduration for which the schoolremains open ?Sainik School, 2008-09 |
|
Answer» total timefrom 8:20 to 1:20=5 hoursand 1:20-1:50=30 minuteshencetotal time=5hours 30minutes. |
|
| 71598. |
Length, breadth and height of a cuboid shape box of medicine is 20cm, 12 em and 10 crmrespectively. Find the surface area of vertical faces and total surface area of this box. |
|
Answer» Like my answer if you find it useful! |
|
| 71599. |
MENSURExample 2: The area ofa rhombus is 240 cm and one of the diagonals is 16 cm. Findthe other diagonal.gonals is 16 cm. Find |
| Answer» | |
| 71600. |
boys9. Calculate the median for the following data-Marks17 20Number of students 5 922153010 |
| Answer» | |