Question
The respective ages of a mother and her daughter are 55
and 15 years. In how many years will the mother be thrice as old as her daughter?Solution
Mother’s age = 55 years Daughter’s age = 15 years Let after ‘t’ years, mother’s age is thrice of her daughter. => 55 + t = 3(15 + t) => 55 + t = 45 + 3t => 2t = 10 => t = 5 yrs
Consider two concentric circles having radii 17 cm and 15 cm. What is the length (in cm) of the chord, of the bigger circle, which is a tangent to the s...
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Find the area of triangle having sides 5 m, 6 m, and 9 m.
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