Question
The ratio between the present age of Beena and Meenal is
4:5, where Sumit is 3 years younger than Meenal then find the ratio of their ages 6 years hence.Solution
Let present age of Beena be 4x years and of Meenal of 5x years. According to the question, => 4x = 5x – 3 => x = 3 Present age of Beena = 4 × 3 = 12 years Present age of Meenal = 5 × 3 = 15 years Now, 6 years hence their ratio of ages, Beena age = 12 + 6 = 18 years Meenal age = 15 + 6 = 21 years Required ratio = 18:21 = 6:7
Solve for x in the equation: 3(x + 2) + 2(2x - 5) = 5x + 9
If x = 19, then the value of x5 - 20x4 + 20x3 - 20x2 + 20x - 1 is
Given a triangle with two sides measuring 12 cm and 16 cm, which of the following cannot be a possible length for the third side?
The mean age of 30 students was calculated as 15 years. However, it was later discovered that one student's age was mistakenly entered as 15 years inste...
In a triangle ABC, a point D lies on AB and points E and F lie on BC such that DF is parallel to AC and DE is parallel to AF. If BE = 4 cm. EF = 6cm. th...
If a = 32, b = c = 31, then find the value of a 3 + b 3 + c 3 – 3abc.
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
105, 111, 123, 141, ?, 195
Let {x + (1/x)} = 4, then Determine the value of {x² + (1/x²)}
