Subject: Maths, asked on 11/2/13

## A motor boat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstreamthan to return downstream to the same spot. Find the speed of the stream.

Subject: Maths, asked on 18/12/16

## The ratio of the areas of a rectangle to a square is 8:9. If the perimeter of each of them is 48 cm. Thwn fins the dimensions of rectangle

Subject: Maths, asked on 2/4/15

## explain componendo and dividendo....

Subject: Maths, asked on 2/1/17

## Consider two trains A and B such that A takes t hours to cover a stretch of 200 km. Now train B which is 25 km/h faster than A takes 24 min less than A. Find the speeds of the train A and B.

Subject: Maths, asked on 3/3/15

## If one root of the quadratic equation kx2-14x+8=0 is 6 times the other, then find the value of k.

Subject: Maths, asked on 6/10/16

## Please solve and explain in an easy understandable form. Question) Jim and Tim were studying progressions and their properties. They wrote a quadratic equation, ax2 - 2bx + c = 0 and assumed that a, b and c were in GP. They both had their own theories about the nature of the roots. Tim claimed that the equation had real roots and that the roots were unequal and distinct while Jim claimed that the roots were imaginary. Which of the following statements is true? (A) Tim was correct (B) Jim was correct. (C) Both Tim and Jim were correct. (D) Neither Tim nor Jim was correct.

Subject: Maths, asked on 18/11/12

## two water taps together can fill a tank in 9(3/8 ) hours . the tap of the larger diameter takes 10 hours less than smaller one to fill the tank seprately.find the time in which each tap can seprately fill the tank.

Subject: Maths, asked on 6/2/13

## Choose the correct answer1) ax2+bx+c=0, a>0, b=0,c>0 hasa) 2 equal rootsb )one real rootc) two distinct real rootsd) no real roots

Subject: Maths, asked on 29/12/12

## solve;1/a+b+x=1/a+1/b+1/x

Subject: Maths, asked on 8/6/17

## Solve this crossword puzzle

Subject: Maths, asked on 9/3/13

## If the roots of the equation(a-b)x2+(b-c)x+(c-a)=0 are equal , prove that b+c=2a.

Subject: Maths, asked on 19/2/13

## If -4 is a root of the quadratic equation x2+px-4=k and the quadratic equation x2+px+k=0 has equal roots. Find the value of k

Subject: Maths, asked on 7/3/13

## if the roots of this equation (a2 + b2)x2 - 2(ac +bd)x + (c2 + d2)=0are equal prove that a/b =c/d{plz note: i was trying to put 2 as square and it wasn't working,so all the twos exept the one in b are squares }Plz help me solving this question

Subject: Maths, asked on 19/1/15

## A shopkeeper stopped using plastic bags and asked his customer to bring their own carry bags due to which his sales reduced by 20 units . If the square of new sale redused by 400 gives 60 times the original sale , find hi original sale.

Subject: Maths, asked on 12/12/12

## solve for x:-a/(x-a) + b/(x-b) = 2c/(x-c)

Subject: Maths, asked on 30/10/16

## Solve for x: 16x2-20(a+b)+(6a2​+13ab+6b2)=0

Subject: Maths, asked on 3/1/12

## At present Asha's age is 2 more than square of her daughter Nisha's age. When Nisha grows to her mother's present age, Asha's age would be one year less than 10 times the present age of Nisha. Find the present age of both Asha and Nisha.?

Subject: Maths, asked on 6/3/15

## solve by middle term factorisation5x2-32x+48=0

Subject: Maths, asked on 3/11/13

## solve for x :root 3x2- 2 root 2x- 2 root 3=0

Subject: Maths, asked on 19/10/16

## Show that equation (a-2)x2 +(2-b)x + (b-a) =0 has equal roots, if 2a=b+2.

Subject: Maths, asked on 26/2/12

## Find the positive value of k, for which the equation x2 + kx + 64 =0 and x2 - 8x + k=0 will both have real roots.

Subject: Maths, asked on 26/10/12

## x2-2(a2+b2)x+(a2-b2)2=0

Subject: Maths, asked on 2/6/15

## the speed of a boat in still water is 15 km / hr . it can go 30 km upstream and return downstream to the orginal point in 4 hours and 30 minutes . find the speed of the stream .

Subject: Maths, asked on 10/9/17

## The set of values of k for which the equation x2 - kx - 5 have real and distinct roots is (A) k < - 5 (B) k > 5 (C) -5 < k < 5 (D) All real values of k

Subject: Maths, asked on 4/3/11

## Two Pipes running together can fill a cistern in 3 1/13 minutes.If one Pipe takes 3 miutes more than the other to fill it, find the time in which each pipe would fill the cistern.

Subject: Maths, asked on 18/10/14

## 4x^2 - 16(p-q)x + 15p^2 - 34pq + 15q^2 = 0

Subject: Maths, asked on 22/2/12

## Seven years ago Varun's age was five times the square of Swati's age. Three years hence Swati's age will be two fifth of Varun's age. Find their present ages.

Subject: Maths, asked on 23/4/18

## 6(x2+1/x2)-35(x-1/x)+62 solve for x

Subject: Maths, asked on 29/2/12

## 4x2 + 4bx - (a2 - b2 ) = 0 please solve this equation................

Subject: Maths, asked on 15/11/12

## A librarian bought some story books for children for Rs 2000. Had the price of each book reduced by Rs 10, he would have bought 10 more books. Find the ORIGINAL price of each book.

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