# ICSE Class X Important Questions of Maths 2012

Advertisements

**Quadratic Equations**

**Q. 1.** Find the length of a diagonal of a square whose sides are 10 m long. Give an exact answer and an approximation to two decimal places.

**Ans:** 14.14 meter

**Q. 2.** The hypotenuse of a right triangle has a length of 13 cm. The sum of the lengths of the two legs is 17 cm. Find the lengths of the legs.

**Ans:** 5 and 12 cm

**Q. 3.**The area of a rectangle is 180 square meters. If the rectangle’s length is increased by 3 meters and the width is decreased by 2 meter, its area does not change. Find the perimeter of the original rectangle.

**Ans:** Length = 15 and Width = 12

**Q. 4.**If from the square of a number, five times the number is subtracted we get 50, what is the number?

**Ans:** -5

**Q. 5.**The sum of 2 digits of a number is 9. The sum of the squares of the digits is 5/7 of the number itself. Find the number

**Ans:** 63

**Q. 6.**Find two Consecutive odd integers whose product is 1599

**Ans:** 39 and 41

**Q. 7.**A rectangular playing ground is twice as long as it is wide, If both dimensions are increased by 4 m, the area is increased by 88 sq m. Find the dimension of the original ground

**Ans:** 6 m by 12 m

**Q. 8.**Find two consecutive odd positive integers, sum of whose squares is 290.

**Ans:** 11 and 13.

**Q. 9.** A rectangular garden is to be designed whose breadth is 3 m less than its length. Its area is to be 4 sqm more than the area of a garden that has already been made in the shape of an isosceles triangle with its base as the breadth of the rectangular garden and of altitude 12 m. find its length and breadth.

**Ans:** 4.

**Q. 10.** The sum of a number and its square is 90. Find the number.

**Ans:** –10 or 9.

**Q. 11.** A two-digit number is such that the product of digits is 8. When 18 is added to it, they interchange their places. Determine the number.

**Ans:** 24

**Q. 12.** The age of the father is square of the age of his daughter. 15 years later, the father is double as old as daughter. Find their present ages.

**Ans:** D= 5 yrs and F=25 yrs

**Q. 13.** The sum of a number and its square is 90. Find the number.

**Ans:** –10 or 9.

**Q. 14.** Sum of the squares of 3 consecutive numbers is 194. Find them.

**Q. 15.** The product of two consecutive odd numbers is 323. Find them.

**Q. 16.** The perimeter of a rectangle is 36 cm and its area is 80 sq.cm. Find its dimensions.

**Q. 17. **The area of a rectangular land is 240 m2. If 8 m is decreased from its length it will become a square. Determine the length and breadth of the land.

**Q. 18.** The sides of a right angle triangle are (x – 1.8) cm, (x + 1.8) cm and (x + 1) cm. Find the area of the triangle.

**Q. 19.** The sum of ages of a father and the son is 45 years. Five years hence the product of their ages will be 600. Find their present ages.

**Q. 20. **The product of age of a man, 6 years before, and 10 years later is 960. Find his present age.

**Q. 21.** Five times a certain number is equal to three less than twice the square of the number. Find the number.

**Q. 22.** Find two consecutive positive even integers whose product is 224.

**Q. 23.** The length of a verandah is 3 m more than its breadth. The numerical value of its area is equal to the numerical value of its perimeter. Find the length and breadth of the verandah.

**Q. 24.** In a class of 60 students, each boy contributed rupees equal to the number of girls and each girl contributed rupees equal to the number of boys. If the total contribution then collected is Rs.1600. How many boys are there in the class?

**Q. 25.** In a flowerbed, there are 23 rose plants in the first row, 19 in the second, 15 in the third, and so on. There are 7 rose plants in the last row. How many rows are in the flowerbed?

Click here to download full paper

For further information regarding ICSE Class X Important Questions of Maths, connect with us on facebook, google+ and twitter.

**Tags: **important questions for class 10 maths icse, maths questions for class 10 icse, important questions class 10 maths icse, icse 2012 maths question, some questions of 10th math (icse), s chand maths class 10 solutions vat and sales tax icsc, info@sarthakinstitute com in delhi of class 10 in subjects maths of M C Q, m2 imp question rgpv, mathematicsimportant question icse, maths class 10 questions

a boat can cover 10km up the stream and 5km down the stream in 6 hours. if the speed of the stream is 1.5km\hr, find the speed of the boat in still water?

shruti raghuvanshi on 14 Mar 2013if (2x(square)-5y(square):xy = 1:3,

find the ratio x:y

i am not able to get this question, can any1 please explain me?

Mehul Verma on 20 Feb 2013i want what questions shall come in ICSE?

some of the mathematics question shall really be helpful.

himalaya on 27 Jan 2013I require selected question of ICSE board 2013,of all subject, can you provide.

sidhantdas on 14 Sep 2012I want expected questions of ICSE board 2013 of all subjects. Can u provide me ?

kaish on 11 Aug 2012i want expected questions of icse board 2013 all subjects. can u provide me?

Priyanka mohanty on 20 Jun 2012find the area of the rectangle whose breadth is 3 times less than its length .also find length of diagonals?

Priyanka mohanty on 20 Jun 2012i want model paper for mathematics of u.k. board

can you provide it

harshita on 20 Sep 201118. The sides of a right angle triangle are (x – 1.8) cm, (x + 1.8) cm and (x + 1) cm. Find the area of the triangle

pgs on 01 Jun 2011want model papers for 2011 mathematics icse board exams .can you provide it?

mint babelee on 24 Apr 2011i want question related to all the chapters in maths such as compound interest,sales tax,vat,banking,shares and dividend,matrices

anushree on 04 Mar 2011Q. 25. In a flowerbed, there are 23 rose plants in the first row, 19 in the second, 15 in the third, and so on. There are 7 rose plants in the last row. How many rows are in the flowerbed?

neha on 23 Feb 2011I want model papers for 2011 mathematics ICSE board exam.can you provide it?

popo on 16 Feb 2011I want model papers for 2011 mathematics icse board exams .can you provide it?

manish on 18 Jan 2011In a flowerbed, there are 23 rose plants in the first row, 19 in the second, 15 in the third, and so on. There are 7 rose plants in the last row. How many rows are in the flowerbed?

kirti shukla on 15 Dec 2010