Home
Class 10
MATHS
If Zeba was younger by 5 years than what...

If Zeba was younger by 5 years than what she really. Is, then the square of her age ( in years) would have been 11 more than five times her actual age. What is her age now?

Text Solution

Verified by Experts

The correct Answer is:
14 years.
Promotional Banner

Topper's Solved these Questions

  • QUADRATIC EQUATIONS

    KUMAR PRAKASHAN|Exercise Excersice-4.1|2 Videos
  • QUADRATIC EQUATIONS

    KUMAR PRAKASHAN|Exercise Excersice-4.2|6 Videos
  • QUADRATIC EQUATIONS

    KUMAR PRAKASHAN|Exercise Test Your Skills|19 Videos
  • PROBABILITY

    KUMAR PRAKASHAN|Exercise OBJECTIVE QUESTIONS (State whether each of the following statements is true or false:) |5 Videos
  • QUESTION PAPER -1

    KUMAR PRAKASHAN|Exercise SECTION D ( Answer the following as required with calculations) |1 Videos

Similar Questions

Explore conceptually related problems

Had Arya scored 10 more marks in her mathematics test out of 30 marks. 9 times these marks would have been the square of her actual marks. How many marks did she score in the test ? (No negative marking system in the test.)

Form the pair of linear equations for the problems and find their solution by substitution method: Five years hence, the age of Jacob will be three times that of his son. Five years ago, Jacob's age was seven times that of his son. What are their present ages?

What is the empirical probability that an engineer lives : more than or equal to 7 km from her place of work ?

A great physicist of this century (P.A.M. Dirac) loved playing with numerical values of Fundamental constants of nature. This led him to an interesting observation. Dirac found that from the basic constants of atomic physics(c,e, mass of electron, mass of proton) and the gravitational constant G, he could arrive at a number with the dimension of time. Further, it was a very large number, its magnitude being close to the present estimate on the age of the universe (~ 15 billion years). From the table of fundamental constants in this book, try to see if you too can construct this number (or any other interesting number you can think of ). If its coincidence with the age of the universe were significant , what would this imply for the constancy of fundamental constants ?

Represent the following situations in the form of quadratic eqautions : (1) The area of a rectangular plot is 528 m^(2) . The length of the plot (in metres) is one more than twice its breadth. We need to find the length and breadth of the plot. (2) The product of two consecutive positive integers is 306. We need to find the integers. (3) Rohan's mother is 26 years older than him. The product of their ages (in years) 3 years from now will be 360. We would like to find Rohan's present age. (4) A train travels a distance of 480 km at a uniform speed. If the speed had been 8km/h less, it would have taken 3 hours more to cover the same distance. We need to find the speed of the train.

Nazima is fly fishing in a stream. The tip of her fishing rod is 1.8 m above the surface of the water and the fly at the end of the string rests on the water 3.6 m away from her and 2.4 m from a point directly under the tip of the rod. Assuming that her string (from the tip of her rod to the fly) is taut, how much string does she have out (see the given figure)? If she pulls in the string at the rate of 5 cm per second, what will be the horizontal distance of the fly from her after 12 seconds?

Savitri had to make a model of a cylindrical kaleidoscope for her science project. She wanted to use chart paper to make the curved surface of the kaleidoscope. (see the given figure). What would be the area of chart paper required by her, if she wanted to make a kaleidoscope of length 25 cm with a 3.5 cm radius? You may take pi=22/7 .

A constractor plans to install two slides for the children to play in a park. For the children below the age of 5 years, she prefers to have a slide whose top is at a height of 1.5m, and is inclined at an angle of 30^(@) to the ground, whereas for elder children, she wants to have a steep slide at a height of 3m, and inclined at an angle of 60^(@) to the ground. What should be the length of the slide in each case ?