Question
My father is presently 25 years older than me. The sum
of our ages 5 years ago was 39 years. Find my present age.Solution
Let my present age be x years and my father’s present age be y years. Father is 25 years older than me: y=x+25 Sum of our ages 5 years ago was 39: (x−5)+(y−5)=39 x+y−10=39 x+y=49 
In ∆ABC, AB = 5cm, BC = 6cm and AC = 10cm then find out the value of cos A?
10 identical solid spherical balls of radius 3 cm are melted to form a single sphere. In this process 20% of solid is wasted. What is the radius (in cm...
The length of the each side of an equilateral triangle is 7√3 cm . The area of circumcircle, (cm 2 ) is
If O is the orthocentre of ΔABC , if ∠BOC = 1350 then what is the measure of ∠BAC?
What will be inradius of an equilateral triangle of side 10 cm?
Find the area of the region enclosed by the curves : y = 0, x = |y| and y = |x - 2|.
In triangle GHI, a point J lies on side HI such that ∠GJH = ∠GJI. If GH = 50 cm, GI = 30 cm, and HI = 40 cm, find the length of HJ.
The internal bisector of ∆ABC at ∠A cuts BC on D and cuts the circumcircle at E. If DE = 6cm, AC = 8cm and AD = 10 cm, then find the length of AB?
In ΔABC, D is a point on BC such that AD bisects ∠A. If BD = 6 cm, DC = 9 cm, find AB/AC.
In a rectangle PQRS, a point A is located inside the rectangle. The distances from A to three of the rectangle’s vertices are given as follows: AP = 8...
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